TW200406547A - Internal intermediate pressure multistage compression type rotary compressor, manufacturing method thereof and displacement ratio setting method - Google Patents

Abstract

There is provided an internal intermediate pressure multistage compression type rotary compressor capable of reducing a height dimension while reducing the amount of oil to be discharged outside. An electric element and first and second rotary compression elements which are driven by a rotary shaft of the electric element disposed under the electric element are provided in a hermetic shell case . There is provided a refrigerant introduction pipe for introducing refrigerant in the hermetic shell case over the electric element into the second rotary compression element through an outside of the hermetic shell case. There is provided an oil path provided in the rotary shaft for discharging oil through an oil discharge port which is positioned at the upper end of the rotary shaft. The refrigerant introduction pipe is provided such that a part of an inlet of the refrigerant introduction pipe is positioned under the upper end of a stator of the electric element.

Description

200406547 m 玖, description of the invention: (1) The technical field to which the invention belongs, the present invention relates to an internal intermediate pressure multi-stage compression rotary compressor, a method for manufacturing the same and a method for setting a volume ratio of exclusion thereof. In a sealed container, it has: Electric component; the first and second rotary compression components are located below the electric component and are driven by the rotary shaft of the electric component to discharge the refrigerant gas compressed and discharged by the first rotary compression component into the sealed container. In addition, the second rotating compression member sucks the exhausted intermediate-pressure refrigerant gas, compresses the refrigerant gas, and discharges the refrigerant gas. (2) Prior art For example, Japanese Patent Laid-Open No. 2-2945 87 (F04C2 3/00) discloses a conventional internal intermediate pressure type multi-stage compression type rotary compressor. The rotary compressor includes an electric component and a rotary compression mechanism portion inside a sealed container. The rotary compression mechanism portion is driven by a first rotary compression component and a second rotary compression component driven by a rotary shaft of the electric component positioned below the electric component. Composed of rotating compression members. In addition, when the electric component is started and the rotary shaft is started to rotate, the refrigerant gas is sucked into the low-pressure chamber side of the cylinder from the suction port of the first rotary compression member (first stage) provided on the bottom side, and the roller and the The action of the blades compresses in the first stage to form an intermediate pressure, and is discharged from the commercial pressure chamber side of the cylinder through the discharge chamber, the discharge chamber, and the intermediate discharge pipe into a sealed container on the bottom side of the electric component. In addition, a refrigerant gas system of intermediate pressure discharged into the sealed container is separated from the oil by the refrigerant, and flows into a refrigerant introduction pipe provided on the bottom side of the electric component. From the outside of the container, -8-200406547. The suction 璋 261 from the second rotating compression member (second stage) 234 is sucked into the low-pressure chamber side of the cylinder 2 38, and the roller 246 and the blade 250 are operated to perform the second The compression of the segments forms a high-temperature and high-pressure refrigerant gas, which passes from the high-pressure chamber side through the exhaust port 239 and the muffler chamber, and is discharged from the refrigerant discharge pipe to the external refrigerant circuit. The discharged refrigerant gas system flows into a radiator (gas cooler) or the like of the refrigerant circuit. After the heat is released, it is contracted by an expansion valve, absorbs heat by an evaporator, returns from the refrigerant introduction pipe, and is sucked into the first rotary compression member. Repeat this cycle. In this case, the discharge volume of the second rotary compression member is generally set to be smaller than the discharge volume of the first rotary compression member. An oil passage is provided in the rotary shaft of the rotary compressor, and the oil stored in the oil storage section provided at the bottom of the sealed container is supplied with oil through an oil pump (oil supply mechanism) installed at the bottom end of the rotary shaft. The inside of the pathway is sucked up. In addition, this oil can be supplied to the rotary shaft, the sliding parts and bearings in the first and second rotary compression members to achieve lubrication and sealing, and it can also be discharged from an oil drain port provided at the top end of the rotary shaft for sealing in the container. Cooling of electric components or lubrication of sliding parts in the periphery. In such an internal intermediate pressure multi-stage compression rotary compressor, the refrigerant gas system compressed by the second rotary compression member is discharged to the outside as it is. However, the refrigerant gas is mixed and supplied to the second rotary compression member. The oil in the sliding part causes the oil to be discharged together with the refrigerant gas. Therefore, there is a problem that a large amount of oil flows into the refrigerant circuit of the refrigeration cycle and the performance of the refrigeration cycle is deteriorated. In addition, in this rotary compressor, since the pressure (high pressure) in the cylinder of the second rotary compression member (200,547,547,547) is higher than the pressure (intermediate pressure) in the sealed container forming the oil reservoir at the bottom, it is difficult to use the pressure. The oil is supplied to the second rotary compression member. Therefore, it is considered that instead of discharging the refrigerant gas at an intermediate pressure discharged from the first rotary compression member into the sealed container, high-pressure refrigerant gas discharged from the second rotary compression member is discharged into the sealed container, and the inside of the sealed container is High voltage state. That is, in this internal high-pressure multi-stage compression rotary compressor, the refrigerant gas is sucked into the low-pressure chamber side of the cylinder from the suction port of the first rotary compression member, and is compressed by the operation of the rollers and the blades to be at an intermediate pressure. In the state, it is discharged from the high pressure chamber side of the cylinder to the exhaust port and the muffler chamber. In addition, the refrigerant discharged into the discharge muffler chamber is sucked into the low-pressure chamber side of the cylinder from the suction port of the second rotary compression member through the refrigerant introduction pipe, and the second stage of compression is performed by the operation of the roller and the blade to form a high temperature. The high-pressure refrigerant gas is discharged into the sealed container from the high-pressure chamber side through a discharge port and a discharge muffler chamber. In addition, the high-pressure refrigerant in the sealed container flows into the radiator from the refrigerant discharge pipe. With such a member, the outflow of oil to the outside can be reduced, and it is expected that the oil supply to the sliding portion can be easily performed. (3) Summary of the Invention In the above-mentioned multi-stage compression type rotary compressor, if the refrigerant introduction pipe facing the second rotary compression member is opened on the bottom side of the electric component, the refrigerant is discharged from the first rotary compression member into the sealed container due to shortening. Due to the distance between the middle discharge pipes, the oil cannot be separated sufficiently, and more than necessary oil can be sucked into the second rotary compression member. In this case, -10- 200406547, since the amount of oil discharged from the second rotary compression member through the refrigerant discharge pipe to the external refrigerant circuit increases, the lubrication and sealing performance in the sealed container of the rotary compressor is reduced, and the refrigerant The bad influence of the oil in the circuit becomes a problem. In order to solve this problem, if the refrigerant introduction pipe facing the second rotary compression member is opened on the top side of the electric component, the problem of increasing the height of the entire compressor occurs. In addition, there is a problem that the oil discharged from the top end of the rotating shaft easily flows into the refrigerant introduction pipe, and the same disadvantages as described above occur. The present invention has been made in order to solve the problems of the conventional technology described above. A first object of the present invention is to provide an internal intermediate pressure type multi-stage compression rotary compressor, which can reduce the amount of oil discharged to the outside while reducing the height. This can effectively avoid the disadvantage that more than necessary oil is sucked into the second rotary compression member and discharged to the outside. In addition, the sealed container, electric component, and rotary compression mechanism part constituting the rotary compressor are manufactured by cutting, welding, etc. of the material of the component. However, foreign matter such as dust or cutting chips during cutting or welding remains in the seal. Inside the container. When connected to an external refrigerant pipe, the same foreign matter may be sucked into the refrigerant circuit. Here, in the above-mentioned multi-stage compression type rotary compressor, the refrigerant gas at an intermediate pressure discharged from the first stage (the first rotary compression member) into the sealed container is passed through a refrigerant introduction pipe directly connected to the sealed container. It is sent to the second stage (the second rotating compression member). Therefore, if there is foreign matter such as dust or cuttings in the sealed container, there will be a refrigerant inlet pipe and refrigerant gas. If it is sucked into the second stage, it may cause wear inside the second rotary compression member, or in the worst case, there is a risk of locking. The present invention has been made in order to solve the problems of the conventional technology described above, and a second object of the present invention is to provide a multi-stage compression type rotary compressor for removing foreign matters inside the compressor and solving and eliminating the wear of the second rotary compression member Or problems caused by lockup. Moreover, in such a multi-stage compression type rotary compressor, the refrigerant gas compressed by the second rotary compression member is discharged to the outside as it is, but the refrigerant gas is mixed and supplied to the second rotary compression. The oil in the sliding part of the component causes the oil to be discharged together with the refrigerant gas. This causes a problem that a large amount of oil flows into the refrigerant circuit in the refrigeration cycle, thereby deteriorating the performance of the refrigeration cycle. In addition, in the internal intermediate pressure type multi-stage compression rotary compressor, the pressure (high pressure) in the cylinder of the second rotary compression member is higher than the pressure (intermediate pressure) in the sealed container forming the oil reservoir at the bottom, so it is difficult to use it. The pressure difference supplies oil to the second rotary compression member. The present invention is made to solve this technical problem. A third object of the present invention is to reduce the amount of oil discharged to the outside of the compressor in a multi-stage compression rotary compressor, and to smoothly and surely compress the second rotary compressor. The component is oiled. Furthermore, the blade system installed on the multi-stage compression rotary compressor is inserted into a groove provided along the radial direction of the cylinder so as to move freely. The blade is a member that presses on the roller and divides the interior of the cylinder into a low pressure chamber side and a high pressure chamber side. A spring and a back pressure chamber for pressing the blade toward the roller 200406547 are provided on the rear side of the blade. The back pressure chamber is usually communicated with the inside of the sealed container, and the high pressure refrigerant gas compressed by the second rotating compression member and discharged into the sealed container flows into the back pressure chamber, and the blades and the spring are pressed toward the roller side. However, in the proposal, In the case of an internal high-pressure type rotary compressor as described above, the pressure in the sealed container is very high, so when the pressure (high pressure) in the sealed container is applied to the back pressure chamber of the first rotary compression member, , There is a danger that the difference between the pressure (from low pressure to intermediate pressure) in the cylinder of the first rotating compression member and the pressure (high pressure) in the back pressure chamber is too large, and the pressure of pressing the blade on the roller increases and becomes greater than If necessary, the surface pressure is significantly applied to the sliding portion between the tip of the blade and the outer peripheral surface of the roller, and the blade and the roller are worn until they are damaged. In addition, since the pressure difference between the cylinder of the first rotary compression member and the back pressure chamber becomes larger (from a low pressure to a pressure higher than the intermediate pressure), the high-pressure refrigerant gas in the sealed container enters through the blade gap of the first rotary compression member. Into the cylinder, there is also a problem that the compression efficiency is lowered. The present invention has been made in order to solve the problems of the above-mentioned conventional technology, and a fourth object of the present invention is to provide a multi-stage compression type rotary compressor, which makes the first rotary compression member even when the internal pressure is high. Blades and rollers have improved durability and can improve compression efficiency. When such a multi-stage compression rotary compressor is used in a cold area such as a cold area, the pressure of the refrigerant compressed by the first rotary compression member is reduced, so the second stage differential pressure ( The difference between the suction pressure of the second rotary compression member and the discharge pressure of the second rotary compression member) -13-200406547 Increasing and increasing the compression load of the second rotary compression member causes a problem that the durability and reliability of the compressor are reduced. Therefore, in the past, by changing a plurality of members such as the roller and the eccentric portion of the rotating shaft shown on the right side of FIG. 5, the exclusion volume of the second rotary compression member 2 3 4 was reduced, thereby suppressing the second stage. Differential pressure. However, in the case where such a large number of components as the second rotary compression member is changed, and the first and second excluded volume ratios are set to be suitable, there is a cost caused by the change of the component (including the material type) , Processing equipment, measuring equipment, etc.). In addition, since the balance of the rotating shaft having an eccentric portion is changed by changing each of the components of the second rotary compression member, in order to adjust the balance of the rotating shaft, it is necessary to change the arrangement of the electric component mounted on the compressor. The present invention is proposed to solve the problems of the conventional technology. A fifth object of the present invention is to provide a multi-stage compression type rotary compressor and a method for setting a volumetric exclusion ratio thereof, which can easily reduce costs while reducing costs. Set an appropriate exclusion volume ratio. That is, in the internal intermediate pressure type rotary compressor of the present invention, the refrigerant introduction pipe system is provided so that a partial inlet of the refrigerant introduction pipe is located below the top end of the stator of the electric component, so the refrigerant introduction pipe is opened to the electric component. In the case of the bottom side, the amount of oil sucked into the refrigerant introduction pipe and discharged from the second rotary compression member to the outside can be reduced. In addition, in the second invention of the scope of patent application, the following scheme is added to the above invention, in which an oil passage is formed on the rotation shaft, and an adjustment mechanism is provided for the adjustment of the adjustment mechanism. The inner diameter of the oil discharge port of this oil passage can reduce the amount of oil discharged to the outside while appropriately adjusting the amount of oil sucked into the second rotary compression member. Further, in the rotary compressor of the invention of claim 3, a gap is formed on the side of the stator of the electric component to communicate with the inside of the sealed container, and the inlet of the refrigerant introduction pipe and the stator are formed at the same time. Therefore, the amount of oil sucked into the refrigerant introduction pipe and discharged from the second rotary compression member to the outside can be reduced compared to when the refrigerant introduction pipe is opened on the bottom side of the electric component. In the rotary compressor of the invention in the fourth scope of the patent application, the top of the notch of the stator is opened in a sealed container on the top side of the electric component, and the bottom end is attached to the content of the third scope of the patent application. Since it is sealed, the refrigerant gas on the top side of the electric component can smoothly flow into the refrigerant introduction pipe, and the reduction in oil separation performance caused by the set gap can be eliminated. The rotary compressor of the invention in the fifth scope of the patent application is based on the content of the third or fourth scope of the patent application, and has an adjustment mechanism for adjusting the inner diameter of the oil discharge port of the oil passage. It is possible to appropriately adjust the amount of oil sucked into the second rotary compression member while reducing the amount of oil discharged to the outside. In the rotary compressor of the inventions claimed in claims 6 and 7, the refrigerant gas in the sealed container on the top side of the electric component is introduced into the second rotary compression component, and the oil discharge port of the oil passage is adjusted. Diameter to adjust the oil discharge amount. This oil passage is formed inside the rotation shaft and discharges oil from the oil discharge port located at the top end portion of the rotation shaft, so it is smoothly sealed. -15-200406547

Separation of oil in sealed containers, In addition, the amount of oil sucked into the second rotary compression member can be appropriately adjusted.  In addition, In the multi-stage compression rotary compressor of the eighth patent application, Department has: Refrigerant inlet pipe, It is used to introduce the refrigerant gas in the sealed container into the second rotary compression member through the outside of the sealed container;  Filtering mechanism, It is arranged on the inlet side of the refrigerant introduction pipe; Therefore, through the filtering mechanism, capture, Remove foreign matter sucked into the refrigerant introduction pipe from the sealed container.  thus, A rotary compressor is available, It prevents the intrusion of foreign matter into the second rotary compression member, Causing wear, The problem of lockups, High reliability.  In addition, In the multi-stage compression rotary compressor of the 9th scope of the patent application, Department has: Refrigerant inlet pipe, To introduce the refrigerant gas in the sealed container into the second rotary compression member through the outside of the sealed container; Filtering mechanism, It is located on the exit side of the refrigerant introduction pipe; Therefore, through the filtering mechanism, capture, The foreign matter sucked into the second rotary compression member from the sealed container through the refrigerant introduction pipe is removed. With this, A rotary compressor is available, It can prevent foreign matter from being sucked into the second rotary compression member,  Causing wear, The problem of lockups, High reliability.  Furthermore, In the multi-stage compression rotary compressor with the scope of patent application No. 10, Department has: Refrigerant inlet pipe, To introduce the refrigerant gas in the sealed container into the second rotary compression member through the outside of the sealed container; Filtering mechanism, It is set in the refrigerant introduction pipe; Therefore, through the filtering mechanism, capture, Remove from sealed container, Foreign matter sucked into the refrigerant introduction pipe. From this, A rotary compressor is available, It can prevent the inhalation of foreign matter before it is prevented. -16- 200406547 into the second rotary compression member, Causing wear, The problem of lockups, More reliable.  In addition, In the multi-stage compression rotary compressor of the 11th patent application scope, Since the refrigerant gas compressed by the second rotary compression member having a pressure higher than that of the first rotary compression member is discharged into the sealed container, The high-pressure refrigerant gas in the sealed container is discharged to the outside, So it can be in a sealed container, The oil contained in the refrigerant gas discharged from the second rotary compression member is separated. With this, Improved oil separation performance, Reducing the amount of oil flowing out of the compressor, therefore, Adverse effects on the external refrigeration cycle can also be suppressed.  Furthermore, In the 12th multi-stage compression rotary compressor of the scope of patent application, Since the refrigerant gas compressed by the second rotary compression member having a pressure higher than that of the first rotary compression member is discharged into the sealed container, The high-pressure refrigerant gas in the sealed container is discharged to the outside, So it can be inside the sealed container, The oil contained in the refrigerant gas discharged from the second rotary compression member is separated. With this, Improved oil separation performance, Reducing the amount of oil flowing out of the compressor, therefore, It also suppresses adverse effects on the external refrigeration cycle.  especially, Since the back pressure chamber is communicated with the discharge side of the first rotary compression member, The back pressure chamber is used to apply back pressure to the blade, The blade is for contact with a cylinder constituting the first rotary compression member and a roller eccentrically rotated inside the cylinder, The interior of the cylinder is divided into a high-pressure chamber side and a low-pressure chamber side. Therefore, in the back pressure chamber of the blade of the first rotary compression member, Supply the intermediate pressure refrigerant gas compressed by the first rotary compression member, Offset the blade towards the roller-17- 200406547.  In the 13th invention filed under the scope of patent application, The following schemes have been added to the above invention, among them, With refrigerant inlet pipe, Therefore, the temperature of the refrigerant gas sucked into the second rotary compression member can be reduced, This refrigerant introduction pipe is used to discharge the refrigerant gas discharged from the first rotary compression member, Through the outside of the sealed container, Instead, it is introduced into the second rotary compression member.  In the invention of the 14th scope of the patent application, The following schemes have been added to the above inventions, among them, The first and second rotary compression members are arranged on the bottom side of the electric component, The first rotary compression member is arranged on the bottom side of the second rotary compression member, At the same time, the refrigerant gas in the sealed container is removed from the top side of the electric component. To the outside, Therefore, the oil separation performance of the oil separation of the high-pressure gas refrigerant in the sealed container can be further improved.  In addition, In the 15th invention of the scope of patent application, Carbon dioxide, which increases the high and low pressure differences, is used as the refrigerant.  In addition, In the multi-stage compression rotary compressor of the invention in the 16th aspect of the patent application, Since the cylinder constituting the second rotary compression member described above, Expands outward from the suction port within a predetermined angle along the rotation direction of the roller, Therefore, the compression of the refrigerant in the cylinder of the second rotary compression member is delayed.  In the method for applying for the invention in item 17 of the patent scope, Since the cylinder constituting the second rotary compression member, Expands outward from the suction port within a predetermined angle of the rotation direction of the roller, Adjust the compression start angle of the second rotary compression member, With this, Set the exclusion volume ratio of the first and second rotary compression members, Therefore, the cooling in the cylinder of the second rotating compression member can be delayed. Removal volume of the second rotary compression member can be reduced. (IV) Embodiments Based on the drawings, The internal intermediate pressure type multi-stage compression type rotary compressor and its manufacturing method and its exclusion volume ratio setting method of the present invention are specifically described. Fig. 1 is a longitudinal sectional view showing the structure of an internal intermediate pressure type multi-stage compression rotary compressor 10 according to a first embodiment of the present invention. The second graph shows a plan view of the cylinder 40 of the first rotary compression member 32.  In the figure, Reference numeral 10 denotes, for example, a vertical internal multi-stage compression type rotary compressor using carbon dioxide (C02) as a refrigerant, The rotary compressor 1 〇 consists of a sealed container 1 2, The electric component 14 and the rotary compression mechanism section 18 are configured, The sealed container 12 is formed into a cylindrical shape from a steel plate, The electric component 14 is arranged on the top side of the internal space of the sealed container 12. The rotary compression mechanism portion 18 is arranged on the bottom side of the electric component 14. It is composed of a first rotary compression member 32 (first stage) and a second rotary compression member 34 (second stage) driven by a rotary shaft 16 of an electric motor 14.  An oil storage portion 58 is formed at the bottom of the sealed container 12, It is composed of a container main body 1 2 A and an end cap (lid body) 12B having a substantially bowl shape. The container body 12A houses the electric component 14 and the rotary compression mechanism portion 18, The end cap 12B closes the top opening of the container body 12A, And a circular mounting hole 12D is formed in the center of the top of the end cover 12B. In this installation hole 12D, Equipped with terminals (omitted wiring) 2 0, This terminal 20 is used to supply power to the electric component 14.  This electric component 14 is composed of a stator 22 and a rotor 24, The stator 22 is installed in a ring shape along the inner peripheral surface of the top space of the sealed container 12. The rotor 24 200406547 at several intervals It is inserted inside the stator 22. The rotor 24 is fixed to the above-mentioned rotating shaft 16 extending in a vertical direction passing through the center.  The rotor 22 includes a stacked body 26 and a stator coil 28. A ring-shaped electromagnetic steel sheet is placed in the stacked body 26. The stator coils 28 are wound around the teeth of the stacked body 26 in a series winding group (dense winding group). In addition, The rotor 24 is also formed of a laminated body 30 of electromagnetic steel sheets, similar to the stator 22. It is comprised so that the permanent magnet MG may be buried in the laminated body 30 inside.  Between the first rotary compression member 32 and the second rotary compression member 34, Holds the middle partition plate 3 6. which is, The first rotary compression member 32 and the second rotary compression member 34 of the rotary compression mechanism section 18 are composed of the following members, This component includes: Intermediate partition plate 36; The top-side cylinders 3 8 set above and below the middle partition plate 36, Bottom cylinder 40; Up and down roller 46, 48, The upper and lower rollers 46, 48 has a phase difference of 180 degrees, With the eccentric shaft 42 set above and below the rotary shaft 16, 44 chimeric, Above and below the cylinder 38, The interior of 40 rotates eccentrically; The upper and lower blades 52 (the blades on the cylinder 38 side are also the same, Although not shown in the figure), The upper and lower blades 52 are coil springs 77 (the same applies to the coil spring on the cylinder 38 side, Although it is not shown in the figure) Its front ends are respectively 48 contacts, Put the upper and lower cylinders 38, Within 40 are divided into low-pressure chamber side L R and still-pressure chamber side H R; Top support members 54 and bottom support members 5 6 as support members, The top open surface of the closed cylinder 38 and the bottom open surface of the cylinder 40, At the same time, the bearing of the rotating shaft 16 is also used.  on the other hand, On the top support member 54 and the bottom support member 56,  -20-200406547 has: Suction passage 60 (the suction passage on the top support member 54 side is not shown in the figure), The suction passage 60 is configured to suck 璋 55 (FIG. 2, The top support member 54 is not shown in the figure), Respectively with the upper and lower cylinders 38, 40 internal connectivity; Exhaust muffler 62, 64, In order to dent locally, It is formed such that the recessed portion The bottom cover 68 is closed.  The exhaust silencing chamber 64 and the sealed container!  2 is connected by a communication path not shown in the figure, This communication path passes through the upper and lower cylinders 38, 40, Middle partition plate 36 and upper and lower support members 54, 56, On the top support member 54 on the top side forming the communication path, An intermediate discharge pipe 1 2 1 connected to the communication passage is erected. In addition, Refrigerant gas (mixed with oil) at intermediate pressure compressed by the first rotary compression member 32, It is temporarily discharged from the intermediate discharge pipe i 2 i into the sealed container 丨 2 at the bottom side of the electric component 14 (black arrow in the figure).  at this time, It is discharged into the refrigerant gas in the sealed container i 2 through an intermediate link, Lubricates the inside of the first rotary compression member 32, Sealed oil but, The oil is separated from the refrigerant gas, After adhering to the inner surface of the sealed container 12, Then, between the flat portion 2 2 C described later of the stator 22 and the sealed container 12, the inner surface of the sealed container 12 is transferred, Return to the bottom of the oil reservoir 5 8 〇 On the side of the container body 12 A of the sealed container 12, In the suction passage 60 (the top side is not shown in the figure) with the top support member 54 and the bottom support member 56, Exhaust muffler 62, The corresponding position of the top support member 54, The sleeve 141 is fixed by welding. 143, In addition, At a position corresponding to the bottom support member 56, The sleeve 142 is fixed by welding, The position corresponding to the top end portion of the stator 22 of the electric component 14 (the bottom side of the end cap -21-200406547 12B in the top end portion of the container body 12A) and the notch 22A described later formed in the stator 22 The sleeve 144 is fixed by welding.  In addition, One end of the refrigerant introduction pipe 92 is connected to the inside of the sleeve 1 4 1 in an inserting manner, Used to send refrigerant gas into the cylinder 38, One end of the refrigerant introduction pipe 92 communicates with a suction passage (not shown) of the cylinder 38. On this occasion,  The refrigerant introduction pipe 92 is provided so that the inlet MA (other end) of the refrigerant introduction pipe 92 is located near the top of the stator 22 of the electric component 14. In addition, The refrigerant introduction pipe 92 fixed in the casing 1 4 1 by welding, Through the sealed container 1 2 outside, While extending to the casing 144, The other end is inserted into the sleeve 144, The inlet 92A is located in the sleeve 144, Right above the stator 22 of the electric component 14, The opening is communicated with the internal space of the sealed container 12 above the electric component 14 above. With this, The intermediate pressure refrigerant gas system discharged into the sealed container 12 flows from the top side of the electric component 14 into the refrigerant introduction pipe 92, It is sucked into the cylinder 38 through the sealed container 12. In this case the sleeve 144, Part of the bottom side of the inlet 92A of the refrigerant introduction pipe 92 (in the embodiment, The bottom side of the inlet 92A is approximately one-third below the top end of the stator 22 of the electric component 14, Most (two thirds) of the top side of the inlet 92A is located on the top side of the top of the stator 22 It is fixed to the container body 12A of the sealed container 12 by welding.  here, In order to install the sleeve 144 so that the entire inlet 92A of the refrigerant introduction pipe 92 is opened on the top side of the stator 22, The size of the container body 1 2 A on the top side of the stator 22 must be made quite large, but, As mentioned above, By setting the refrigerant introduction pipe 92 such that a part of the inlet 92A of the refrigerant introduction pipe 92 is located below the top end of the stator 2 2 of the electric component 14, Then, the position of the casing 1 44-22- 200406547 (the position of the opening 92A of the refrigerant introduction pipe 92) is lowered. With this, The overall height of the rotary compressor 10 is reduced.  In this way, the inlet 92A of the refrigerant introduction pipe 92 fixed to the sleeve 144 is welded, The internal space of the sealed container 12 which is opened above the electric component 14 in a connected manner, And the refrigerant introduction pipe 92 itself passes through the outside of the sealed container 12, Inserted into the sleeve 1 4 1. With this, The refrigerant gas discharged to the intermediate pressure in the sealed container 12 flows into the refrigerant introduction pipe 92 from the top side of the electric component 14 Passing outside the sealed container 12 (here, Intercooling), Suction into the cylinder 38.  In addition, On the sealed container 12 on the side of the cylinder 40 corresponding to the first rotary compression member 32, The sleeve 142 is fixed by welding. One end of the refrigerant introduction pipe 94 is inserted into the sleeve 142 in an inserting manner. The refrigerant introduction pipe 94 is used to send refrigerant gas to the cylinder 40, One end of the refrigerant introduction pipe 94 communicates with the suction passage 60 of the cylinder 40. The other end of the refrigerant introduction pipe 94 is connected to a heat accumulator (not shown). In addition, The refrigerant discharge pipe 96 is inserted into the sleeve 143 in an inserting manner. One end of the refrigerant discharge pipe 96 communicates with the discharge muffler chamber 62.  here, Referring to Figure 2, The operation of the first rotary compression member 32 will be described. In the cylinder 40, A discharge port 70 and a suction port 5 5 are formed. The discharge port 70 passes through a discharge valve (not shown). Communicating with the above-mentioned exhaust muffler chamber 64, Between these two connections, In the cylinder 40, A guide groove 71 extending in the radial direction is formed. In addition, Inside the guide groove 71, The blades 52 are housed in a slidable manner. As stated, The front end of a piece 52 is in contact with the roller 48, The inside of the cylinder 40 is divided into a low-pressure chamber side LR and a high -23-200406547 pressure chamber side HR. In addition, Suction 璋 5 5 is opened on the low-pressure chamber side LR, The discharge 璋 70 is opened to the high-pressure chamber side HR.  On the outside of the guide groove 71 (the sealed container 12 side), In order to form the receiving portion 78 inside the cylinder 40, So as to communicate with the guide groove 71. The coil spring 77 is housed in the receiving portion 78. On the back side of the coil spring 77, The detachment prevention portion 80 is fixed to the accommodation portion 78 by an insertion method. By the force of the coil spring 77, The front end of the blade 52 is often pressed toward the rotor 48 side.  In addition, The above configuration is basically the same in the second rotary compression member 34, But the dimensions of the components are of course different.  on the other hand, Within the rotation axis 16, The oil passage 82 is provided through the shaft center, Cross up and down, The bottom end of the oil passage 8 2 is in communication with an oil pump (not shown), The oil pump draws oil from the oil storage part 5 8 at the bottom of the sealed container 12. The top end is opened to the inner top of the sealed container 12 on the top side of the stator 22 with an oil discharge port 8 2 A. The oil passage 8 2 is also connected to each of the rotary compression members 3 2. 3 4 The sliding part communicates.  on the other hand, In the oil discharge port 8 2 A at the top of the oil passage 8 2, An auxiliary discharge member 84 (corresponding to the adjusting mechanism of the present invention) is provided (FIG. 3, (Figure 4). The auxiliary discharge member 84 has a bottomed cylindrical shape with an open top surface. It is press-fitted into the oil discharge port 8 2 A of the oil passage 8 2.  The auxiliary discharge member 84 is formed with an oil discharge hole 84A having a predetermined hole diameter (inner diameter) at one position in the center of the bottom surface. The auxiliary discharge member 84 is provided at the top end of the rotating shaft 16, Seal the oil outlet 82A of the oil passage 82, At the oil discharge hole 84A formed at the bottom of the seal, Adjust the rotation axis in the narrowing direction!  The inner diameter of the 6 oil passage 82. The size of the inner diameter of the oil discharge hole 84A is set to 200406547, Cooling of the electric components 14 in the sealed container 12 or lubrication of each sliding portion can be performed appropriately, The amount of oil sucked into the second rotary compression member 34 through the refrigerant introduction pipe 92 is a suitable amount. thus, It is also possible to ensure the circulation and sealing performance in the second rotary compression member 34, Reduce the suction into the second rotary compression member 3 4, The amount of oil drained to the outside. In addition,  The oil discharge hole 84A of the auxiliary discharge member 84 is appropriately determined to correspond to the size of the compressor 10, In addition, The oil discharge hole 84A can also be set in a way that is offset from the center position. A plurality of auxiliary discharge members 84 are inserted so that the oil discharge holes 84A do not overlap, thus, Adjustable oil discharge. In addition,  The description of the action will be described later.  Fig. 6 shows the first and second rotary compression members 32, 2 having a second embodiment of the present invention. A longitudinal sectional view of the structure of the internal intermediate pressure type multi-stage compression rotary compressor 10 of 34. In addition, In Figure 6, The same configurations as those in Fig. 1 are assigned the same reference numerals. In addition, For the same structure with respect to other embodiments described later, The same reference numerals are used. The inlet 92A (the other end) of the refrigerant introduction pipe 92 in FIG. 6 is insertedly connected to the inside of the sleeve 144, Opening in sleeve 144, The sleeve 144 communicates with a notch 22A described later, This notch 22A is formed in the stator 22 of the electric component 14.  The notch 22A is formed on the side top of the stator 22, Its top end communicates with the inside of the sealed container 12 on the top side of the electric component 14, Its bottom end is sealed (Figure 7) Figure 8). here, Around the stator 22, Is formed with a fitting portion 22B, Are fitted to the inner surface of the container body 12 A of the sealed container 12 at approximately equal intervals; Flat part 22 C, It is formed in a cross section, This flat portion 2 2C and the inner surface of the container body 12A of the sealed container 12, Form a prescribed gap (the inside of the sealed container 1 2 is opened up and down at -25- 200406547), Do not touch it (Figure 7). The fitting portion 22B and the flat portion 22C are alternately formed at every 12 locations. On one of the fitting portions 22B, From the side of the upper end cap 12B, Towards the direction of the lower reservoir section 58, According to the specified size (in the embodiment, From the middle of the stator 22 to slightly below) Form the above-mentioned gap 22 A.  The notch 22A is set corresponding to the sleeve 144, And its width is the same as the inlet 92A of the refrigerant introduction pipe 92, Or a slightly larger shape to form the gap, The inside of the sealed container 12 on the top side of the electric component 14 is communicated with the inlet 92A of the refrigerant introduction pipe 92. The notch 22A is discharged from the middle discharge pipe 121 into the inside of the sealed container 12, Then, the refrigerant gas rising above the electric component 14 is sucked into the refrigerant introduction pipe 92 from the inlet 92A.  In addition, The clearance between the flat portion 22C and the inner surface of the sealed container 12 communicates with the upper and lower sealed containers 12 of the stator 22, Make the refrigerant gas discharged to the bottom side of the electric component 14 rise to the top, The oil adhering to the inner surface of the sealed container 12 is caused to flow to the oil storage portion 58 at the bottom. In addition, On the bottom side of the entrance 92A of the gap 22A, It is also possible to set an oil drain path to the other flat part 2 2 C or under the electric component 1 4. According to the program, It can also eliminate the flow into the gap 22A, In addition, there is a shortage of oil entering the refrigerant introduction pipe 92. In addition, The description of the action will be described later.  Fig. 14 is a view showing a third embodiment of the present invention having first and second rotary compression members 3 2, A longitudinal sectional view of the structure of the internal intermediate pressure type multi-stage compression rotary compressor 10 of 34. In the inlet 92A of the refrigerant introduction pipe 92 in FIG. 14, A filter 130 (a filtering mechanism of the present invention) is provided. The filter 130 captures the ash, which is mixed into the refrigerant gas circulating in the refrigerant circuit including the sealed container 12 through the -26- 200406547 ring, Filtering foreign materials such as chips, It is basically conical, It includes an opening portion 130 A and a front end portion 130 B formed on one side, The front end portion 1 3 0 B is tapered from the opening portion 1 3 0 A toward the other side.  The filter 130 is installed as follows, The method is: The inlet 92A of the refrigerant introduction pipe 92 is divided into the inside of the sealed container 12 (upstream side) and the inside of the refrigerant introduction pipe 92 (downstream side). On the inner surface of the refrigerant introduction pipe 92, The opening 130A is installed in a close fit. It is possible to filter out all the foreign matter that has entered the refrigerant introduction pipe 92 from the sealed container 12. With this, According to the ability to pass the filter 1 3 0, Dust remaining inside the sealed container 1 2  It is constructed by filtering foreign matter such as chips. In addition, In the example in Figure 14 A filter 130 is installed in the inlet 92A of the refrigerant introduction pipe 92. But, The filter 130 may be installed inside the sleeve 144 (both the inlet side of the refrigerant introduction pipe 92) and the like near the refrigerant introduction pipe 92 (inside the sealed container 12).  In addition, An opening 130A is set in the upstream direction of the refrigerant introduction pipe 92,  The front end portion 130B is set in the downstream direction of the tube 92, This prevents the passage in the refrigerant introduction pipe 92 from being blocked by the foreign matter when the filter 130 catches the foreign matter. which is,  The opening portion 130A is positioned at the inlet 92A (the upstream side of the refrigerant gas) of the refrigerant introduction pipe 92, With the front end portion 1 3 0 B on the downstream side of the refrigerant gas,  The filter 130 is installed in the refrigerant introduction pipe 92. In addition, The filter 130 consists of a metal mesh, Synthetic fiber web, Or synthetic fibers, These materials are capable of filtering foreign matter such as dust or cuttings remaining in the sealed container 12, In addition, the performance of the refrigerant gas sealed in the hermetic container 12 and the oil mixed with the refrigerant gas is not easily deteriorated. In addition, Filtering dust, Chips -27-200406547 Not easy to break.  here, In the sealed container 12 constituting the rotary compressor 10, Presence Residual sealed container 1 2, Electric components 1 4, Or rotary compression mechanism section 18 etc. &  Dust caused by cutting or welding of component materials, In the case of foreign objects such as welding swarf. In this case, When manufacturing the rotary compressor 10, Cutting of component materials, Dust during welding, Foreign matter such as chips is removed by sweeping, But yes There are still these foreign bodies not swept away, While remaining inside the sealed container 12, In addition, foreign matter may be drawn in from an external refrigerant circuit. Therefore, To filter these foreign bodies, The filter 1 3 0 of the present invention is provided.  Fig. 17 shows a fourth embodiment of the present invention. Having first and second rotary compression members 3 2,  A longitudinal cross-sectional view of the structure of the internal intermediate compression type multi-stage compression type rotary compressor 10 is provided. In addition, The rotary compressor 1 of the present invention will be described later, It is an internal high-pressure multi-stage compression rotary compressor.  In Figure 17, The multi-stage compression type rotary compressor 10 is composed of the following components, This component includes: Sealed container 1 2, A cylindrical container body 12A formed of a steel plate, And a slightly bowl-shaped end cap (lid body) 12B that seals the top opening of the sealed container 12A; Electric components 1 4, It is arranged on the top side of the internal space of the container body 1 2 A of the sealed container 12. Rotary compression mechanism section 1 8, Is located on the bottom side of the electric component 14 The first rotary compression member 3 2 and the second rotary compression member 34 are driven by the rotary shaft 16 of the electric component 14.  In addition, The sealed container 12 has a bottom portion as an oil reservoir. In addition, A mounting hole 1 2D is formed in the center of the top surface of the end cover 1 2B described above. In the mounting hole 12D, Equipped with terminals (wiring omitted) 20, Used to supply power to the motorized components 1 4. here, Since the sealed container 12 is formed in a high-pressure state as described later, Therefore, the terminal 20 is an internal high voltage corresponding type, No central pipe welding is required.  In the headspace inside the sealed container 12, The electric component 14 is composed of a stator (fixing member) 22 and a rotor (rotating member) 24. The stator 22 is installed in a ring shape along the inner surface of the container body 1 2 A. The rotor 24 is inserted into the stator 22 at a predetermined interval. In addition, On this rotor 24, Fix the rotation axis 16 extending in the vertical direction.  The stator 22 includes: Laminate 26, The ring-shaped electromagnetic steel sheets are stacked;  Stator coil 圏 28, It is wound around the teeth of the stacked body 26 in a series winding group (dense winding group). In addition, The rotor 24 is also the same as the stator 22, Is structured as follows, The method is: It is formed by a stack 30 of electromagnetic steel sheets, Inside the stacked body 30, A permanent magnet MG is embedded. and also, After the permanent magnet MG is inserted into the stacked body 30, Cover the upper and lower end faces of the stacked body 30 with end members of non-magnetic bodies not shown in the figure, On the face of the end face member that is not in contact with the stacked body 30, Equipped with a counterweight 101 (the counterweight on the bottom side of the stacked body 30 is not shown in the figure), In addition, On the top side of the weight 10, which is located on the top side of the stacked body 30, Install the oil separation plate 103 in an overlapping manner. In addition, To pass through the rotor 2 4, Rivet 104 of counterweight 1 0 1 · and oil separator 1 0 3, Connect these components into one piece.  and also, On the end portion (tip portion) of the electric component 14 side of the rotary shaft 16, On the top side of the rotor 24, Installed with oil separation plate 丨 03. on the other hand, At the end (bottom end) of the rotary compression member 32 side of the rotary shaft 16-200406547 An oil pump 102 is formed as an oil supply mechanism. The purpose of setting the oil pump 102 is to form an oil reservoir from the bottom of the sealed container 12, Suck up the lubricating oil, Will be supplied to the sliding part of the rotary compression mechanism part 18, etc., Prevent wear, And sealed The bottom end 104 of the oil pump 102 is located inside the oil reservoir.  The fifth embodiment of the present invention will be specifically described below. Between the first rotary compression member 32 and the second rotary compression member 34 of the 17th, With intermediate divider 3 6 The first rotating compression member 3 2 is located on the bottom side of the middle partition 3 ό, In addition, The second rotary compression member 34 is located on the top side of the intermediate partition plate (that is, Top side of the first rotation compression member 32). which is, The first rotation compression member 32 and the second rotation compression member 34 are composed of the following members:  Partition board 3 6; Cylinders 3 8 set above and below the intermediate partition plate 36,  ; Up and down roller 46, 48, The upper and lower rollers 46, 48 has a phase difference of 180 degrees, In the cylinder 38, Within 40, With the vertical deflection axis 42 set on the rotation axis 16, 44 chimeric, Rotate eccentrically; Blades not shown in the figure,  The blades are respectively with the upper and lower rollers 46, 48 contacts, Put the upper and lower cylinders 38, 40 The interior is divided into low pressure chamber side and high pressure chamber side; A partial support member 54 and a bottom support member 56 as support members, The top support member 5 4 and the bottom support member 5 6 close the open surface on the top side of the upper cylinder 38 and the open surface on the bottom side of the lower cylinder. It is also used as a bearing for the rotating shaft 16.  In the lower cylinder 40 constituting the first rotary compression member 32, A guide groove 72 is formed to receive the blade 52, Outside the guide groove 72, which is,  Back side of sheet 5 2 A receiving portion 72A is formed to accommodate the spring 76 as an elastic member. This spring 76 is in contact with the rear end of the blade 52, Often, the top of the 40-position center and the 40-position leaf volume for the 36-turn holding plate of the current drawing board are 200406547. The 5 2 pieces are pressed on the 4 8 side of the roller. In addition, The receiving portion 7 2 a is opened on the side of the guide groove 72 and the side of the sealed container 12 (the container body 12A). On the sealed container 1 2 side of the spring 7 6 housed in the receiving section 7 2 A, Set with metal plug 138, It functions to prevent the spring 76 from coming out. In addition, On the periphery of the plug 138, An O-ring not shown is provided, In order to seal the plug 138 and the inner surface of the receiving portion 72A.  In addition, Between the guide groove 72 and the receiving portion 72A, With a back pressure chamber 52A, This back pressure chamber 5 2 A applies the cooling discharge pressure of the first rotary compression member 34 to the blade 52, In order to work with the spring 76, the blade 52 is constantly pressed to the roller 48 side. The bottom surface of the back pressure chamber 5 2 A communicates with a communication passage 1 0 0 described later. In addition, The back pressure chamber 5 2A is isolated from the sealed container 12 by the above-mentioned plugs 1 3 8.  and also, On the top support member 54 and the bottom support member 56, With: Suction path 59, 60, The suction passage 59, 60 is suction 161 (the suction port of the first rotary compression member 32 is not shown in the figure), With the upper and lower cylinders 38, 40 internal connectivity; Exhaust muffler 62, 64, The exhaust muffler chamber 62, 64 By using a cover as a wall, The recessed portions of the top support member 54 and the bottom support member 56 are formed in a closed manner. which is, The exhaust muffler chamber 62 is closed with a top cover 66 as a wall constituting the exhaust muffler chamber 62. The exhaust muffler chamber 64 is closed with a bottom cover 68.  In addition, The aforementioned communication passage 100 is formed in the bottom support member 56. The communication passage 100 is a passage that communicates with a discharge silencing chamber 64 that communicates with a discharge port (not shown) of the cylinder 40 that communicates below the first rotary compression member 32 and the counter-pressure chamber 52A. The top side of this communication path 100 is in communication with the back pressure chamber 200406547 52A, The bottom side communicates with the exhaust silencing chamber 64. In addition, The blade 5 2 of the first rotary compression member 3 2 is pressed against the roller 4 8 side with the following intermediate pressure, This intermediate pressure means, Compressed by the first rotation compression member 32, Discharge to the exhaust silencing chamber 64 through a discharge port not shown in the figure, Then, the intermediate pressure of the refrigerant gas flowing into the back pressure chamber 52A through the communication passage 100 is passed.  thus, Compared with the case where the pressure inside the sealed container 12 forming the high pressure is applied to the blades 5 2 of the first rotary compression member 32 as a back pressure, The pressure difference between the cylinder 40 of the first rotary compression member 32 and the back pressure chamber 52A can be reduced, While preventing the so-called blade bounce, The front end load of the blade 52 can be reduced. then, Can improve the reliability of the compressor 10.  In addition, Since the amount of refrigerant gas leaking into the cylinder 40 from the guide groove 7 2 of the blade 5 2 of the first rotary compression member 32 can also be reduced, Therefore, compression efficiency can be improved.  and also, The bottom cover 68 is formed of a circular steel sheet, Four peripheral edges are fixed to the bottom support member 56 by the main bolts 129 ... from below. The main bolt 1: The front ends of 29... Are screwed with the support members 54.  here, The discharge silencing chamber 64 of the first rotary compression member 32 and the suction passage 59 of the second rotary compression member 34 communicate with each other through a refrigerant introduction pipe 92. The refrigerant introduction pipe 92 is located outside the sealed container 12, The refrigerant gas system discharged into the exhaust muffler 64 passes through the refrigerant introduction pipe 92 through the sealed container 1 2, It is sent to the second rotary compression member 34.  at this time, In the refrigerant gas supplied to the second rotary compression member 34, Mixed with the oil supplied to the first rotary compression member 32, The refrigerant gas containing a large amount of this oil is directly sucked into the second rotary compression member 34. thus, Sufficient oil is supplied to the second rotary compression member 34 without any hindrance.  in this way, The refrigerant gas compressed by the first rotary compression member 32 may not be discharged into the sealed container 12. And through the refrigerant introduction pipe 92, It is sucked into the second rotary compression member 34 as it is, With this, It may include oil supplied to the first rotary compression member 32, The oil-containing refrigerant gas is sent to the second rotary compression member 34 as it is.  then, Without using a special device for supplying oil to the sliding portion of the second rotary compression member 34, Supply oil to the second rotary compression member 34, The shortage of oil in the second rotary compression member 34 can be eliminated.  In addition, Since the oil supply mechanism of the second rotary compression member 34 can be simplified,  Therefore, the production cost of the oil supply mechanism can be reduced.  and also, Through the refrigerant introduction pipe 92 provided on the outside of the sealed container 12, The refrigerant gas compressed by the first rotary compression member 32 is sent to the second rotary compression member 34. thus, The refrigerant gas compressed by the first rotary compression member 32 is cooled while passing through the outside. thus, The temperature of the refrigerant gas sucked into the second rotary compression member 34 can be reduced, Improve compression efficiency.  on the other hand, On the top side of the top cover 6 6 In a manner to keep a predetermined distance from the top cover 6 6, Set the electric components 1 to 4. The peripheral portion of the top cover 66 is fixed to the top support member 54 by four main bolts 7 8... From above. The front ends of the main bolts 78... Are screwed into the bottom support member 56.  The discharge muffler chamber 62 in the second rotary compression member 34 is in communication with the inside of the sealed container 12 through a discharge hole 1 2 0. The discharge hole 1 2 0 passes through the top cover 6 6, Open on the side of the electric component 14 in the sealed container 12, From this discharge hole, 2〇, The -33-200406547 high-pressure refrigerant gas compressed by the second rotary compression member 34 is discharged to the inside of the sealed container 12. at this time, In refrigerant gas, Mixed with the first and second rotary compression members 32, 34 oil, but, This oil also drains into the inside of the sealed container 1 2. In addition, As the oil passes through the space inside the sealed container 12, Separated from refrigerant gas, It flows down to the bottom of the sealed container 12 to the oil reservoir.  In addition, As the refrigerant in this case, Considering environmental protection Factors such as flammability and toxicity, Carbon dioxide (C02) using natural refrigerant, Oil as lubricating oil sealed in a hermetic container 2 Using, for example, mineral oil, Alkylbenzene oil, Ether oil, Ester oil, Existing oils such as PAG (polyalkylene glycol oil).  In addition, On the side of the container body 1 2 A of the sealed container 12, In the suction passage 59 with the top support member 54 and the bottom support member 56, 60,  Exhaust muffler 64, The position corresponding to the top side of the rotor 24 (directly above the electric component 14), The sleeves 141 and 141 are fixed by welding, respectively. 142, 143 and 144. The sleeves 141 and 142 abut one another up and down, And the sleeve 143 is located on a slightly diagonal line of the sleeve 142. In addition, The sleeve 144 is located above the sleeve 141.  and also, One end of a refrigerant introduction pipe 92 for feeding refrigerant gas into the upper cylinder 38 is connected to the sleeve 141 by an inserting manner.  The refrigerant introduction pipe 92 is as described above. For supplying the refrigerant gas compressed by the first rotary compression member 32 to the second rotary compression member 34, One end of the refrigerant introduction pipe 92 is communicated with the suction passage 59 of the upper cylinder 38. In addition, The refrigerant introduction pipe 92 passes through the outside of the sealed container 1 2, Extends to the sleeve 1 43, The other end is connected to the inside of the sleeve 1 43 by inserting, It communicates with the discharge muffler chamber 64 of the first rotation 200406547 compression member 32.  and also, One end of a refrigerant introduction pipe 94 for feeding refrigerant gas into the lower cylinder 40 is connected to the sleeve 142 in an insert manner, One end of the refrigerant introduction pipe 94 communicates with the suction passage 60 of the lower cylinder 40. The other end of the refrigerant introduction pipe 94 is connected to a heat accumulator (not shown) which constitutes a refrigerant circuit of a refrigeration cycle.  In addition, The refrigerant introduction pipe 96 is inserted into the sleeve 144 in an inserting manner,  One end of the refrigerant introduction pipe 96 is communicated with the inside of the sealed container J 2 above the electric component 14. in this way, Since the refrigerant introduction pipe 9 6 is provided on the top side of the electric component 1 4, Therefore, together with the refrigerant gas compressed by the second rotary compression member 3 4, the oil system at the bottom of the electric component 1 4 in the sealed container 12 passes through the electric component 1 4, Reach the top side, The refrigerant introduction pipe 96 is discharged to the outside. in this way, The refrigerant gas discharged from the second rotary compression member 34 is moved in a space inside the sealed container 12. thus, The oil mixed therein was smoothly separated. In addition, Since the refrigerant gas passes through the oil separation plate 1 0 3 set on the top side of the electric component 14 (the top end of the rotating shaft 16), Therefore, the oil separation is further promoted. thus,  The amount of oil discharged to the outside of the rotary compressor i 0 (inside the refrigerant circuit of the refrigeration cycle) together with the refrigerant gas can be effectively reduced.  In addition, As mentioned before, The oil-containing refrigerant gas is sucked into the second rotary compression member 34. Therefore, even during high compression operation, The temperature rise of the second rotary compression member 34 can still be reduced. With this situation, It also suppresses the temperature rise of the 14 parts of the electric component, the result is, Improve the performance and reliability of the rotary compressor 10.  FIG. 18 is an embodiment of a multi-stage compression-type rotary press -35- 200406547 of the sixth embodiment of the present invention. With first and second rotary compression members 3 2, A longitudinal sectional view of the structure of an internal intermediate pressure multi-stage (two-stage) compression rotary compressor 10 of 3, Fig. 19 is a refrigerant circuit diagram showing the application of the present invention to a water heater 1 5 3, Fig. 20 shows the first and second rotary compression members 32 of the rotary compressor for normal temperature. 3 4 of the cylinder 3 8, 4 0's sectional view, Figure 21 shows the second and third rotary compression members 3 and 2 of the rotary compressor 10 for use in cold regions according to the present invention. 3 4 of the cylinder 3 8, Sectional view of 40.  In Figure 18, The stator 22 includes a stacked body 26 and a stator coil 28,  In this stacked body 26, Stacked ring-shaped electromagnetic steel sheets, The stator coil 28 is wound around the teeth of the stacked body 26 in a series winding group (dense winding group). In addition, The rotor 24 is also configured in the following manner similarly to the stator 22, It consists of a stack of electromagnetic steel sheets 30; form, A permanent magnet M G is inserted into the stacked body 30. In addition, After inserting the permanent magnet M G into the stacked body 30,  Cover the upper and lower end faces of the stacked body 30 with non-illustrated non-magnetic end face members, The surface which is not in contact with the superposed body 30 of the end member, Equipped with a counterweight 1 0 1 (the counterweight on the bottom side of the stacked body 30 is not shown in the figure), In addition, The oil separation plate 103 is superposed on the top side of the counterweight 10 j located on the top side of the stacked body 30.  and also, To pass through the rotor 2 4, Weights 〇 1… and rivets 104 of the oil separation plate 103. Connect these components into one piece.  also, Between the first and second rotary compression members 3 4 Hold the middle divider plate 3 6. which is, The first rotary compression member 32 and the second rotary compression member 34 are composed of the following members: Middle divider 3 6; The upper and lower cylinders 3 8 set to the middle partition plate 3 6 4 0; Up and down wheels 4 6, 4 8,  200406547 The up and down roller 46, 48 As shown in Figure 20, With a 180 degree phase difference between the upper and lower cylinders 3 8, 4 0 inside, With the upper eccentric shaft 4 set on the rotating shaft 1 2 4 4 chimeric, Rotate eccentrically; Blade 5 〇 、 5 2, The piece 52 and the up and down waves 46, 48 contacts, Put the upper and lower cylinders 38, 40 points divided into low-pressure chamber side and high-pressure chamber side; The top support member 5 4 and the bottom support member 56 as support members, The top support member 54 and the bottom support member 56 close the open surface on the top side of the upper cylinder 38 and the open surface on the bottom side of the lower cylinder 40. It is also used as a bearing for the rotating shaft 16.  here, The discharge volume of the second rotation compression member 34 is smaller than the discharge volume of the first rotation compression member 32, but, In this case, According to the second rotation, the compression volume of the compression member 34 is large, In Figure 20, Designed for 65% of the volume of the first rotary compression member 32.  In addition, On the top support member 54 and the bottom support member 56, Assume : Suction path 60 (the suction path on the top side is not shown in the figure), The suction path is through the suction port 1 6 1. 1 6 2 Respectively with the upper and lower cylinders 3 8, Connected within 40 Row muffler 62, 64, This exhaust muffler chamber 62, 64 follow through as the wall, The recessed portions that close the top support member 54 and the bottom support member 56 are formed in a pattern. which is, The exhaust silencing chamber 62 is closed by a top cover 66 as a wall constituting the exhaust silencing chamber. The exhaust silencing chamber 64 passes through the bottom cover 68. In this case, In the middle of the top support member 54, Form the bearing 5 4 A in a standing position. In addition, In the middle of the bottom support member 56, Form bearing 5 6 A in a through way, The rotation shaft 16 is supported by 54A of the top support member 54 and the bearing 56A of the bottom support member 56.  The lower leaf is a structure bearing. □ Rotate and rotate. There are 60 outlets and 62 squares. 200406547 In addition, The bottom cover 68 is made of a circular steel sheet, The main support bolts 1 29… are fixed to the bottom support members 5 6 at the four peripheral portions from below, The discharge port 41 separates the discharge muffler chamber 64 which is in communication with the inside of the lower cylinder 40 of the first rotary compression member 32. The front ends of the main bolts 129,...  On the top surface of the exhaust muffler 64, A discharge valve 128 is provided (in Figs. 20 and 21, For the sake of narrative, Expressed in the same plane as the cylinder), The discharge valve 128 closes the discharge port 41 in an openable and closable manner. The discharge valve 128 is composed of an elastic member, The elastic member consists of a longitudinally long one, Formed of a substantially rectangular metal plate, One side of the discharge valve 1 2 8 is in contact with the discharge port 41 and is closed. The other side is kept at a predetermined interval from the discharge port 41, It is fixed to a mounting hole (not shown) of the bottom supporting member 56 by a rivet.  In addition, A check valve 128A is provided on the bottom side of the discharge valve 1 2 8 as a discharge valve suppression plate. With the above discharge valve. It is the same as 128 and is provided with a bottom support member 56. The refrigerant gas compressed in the lower cylinder 40 to reach a predetermined pressure presses the discharge valve 1 2 8 that closes the discharge port 41, opens the discharge port 41, and discharges to the discharge muffler 64. At this time, since the discharge valve 28 is fixed to the bottom support member 5 6 at the other side, the side contacting the discharge port 41 is reversely bent, and the check valve restricts the opening amount of the discharge valve 1 2 8 1 2 8 A contact. When the discharge of the refrigerant gas is completed, the discharge valve 128 is separated from the check valve 128A, and the discharge port 41 is closed. The exhaust muffler chamber 64 in the first rotary compression member 32 communicates with the inside of the sealed container 12 through a communication passage that passes through the top cover 66, the upper and lower steam-38-200406547 cylinders 3, 4 0, and the middle partition. Holes not shown in plate 36. In this case, an intermediate discharge pipe 1 2 1 is erected at the top end of the communication path, and the refrigerant at an intermediate pressure is discharged from the intermediate discharge pipe 1 2 1 into the sealed container 12. In addition, the top cover 66 constitutes a discharge muffler chamber 62, which communicates with the inside of the upper cylinder 38 in the second rotary compression member 34 through a discharge port 39, and on the top side of the top cover 66, The electric components 14 are set so as to maintain a predetermined distance from the top cover 66. The top cover 66 is formed of a slightly annular circular steel plate, in which a hole through which the bearing 5 4 A of the top support member 5 4 passes is formed, and the peripheral portion passes four main bolts 7 8... It is fixed to the top support member 54 from above. The front ends of the main bolts 7 8... Are screwed to the bottom support members 56. On the bottom surface of the discharge muffler chamber 62, there is a discharge valve 127 (in FIGS. 20 and 21, for convenience of description, it is represented by the same plane as the cylinder). The discharge valve 1 2 7 can be opened and closed. The exhaust ports 39 are closed. The discharge valve 1 2 7 is composed of an elastic member formed by a longitudinally long and substantially rectangular metal plate. One side of the discharge valve 1 27 is in contact with the discharge port 39 and closed, and the other side is in accordance with the discharge port 3 9 At predetermined intervals, they are fixed to mounting holes (not shown) of the top support member 54 with rivets. Further, a check valve 127A serving as a discharge valve suppressing plate is provided on the top side of the discharge valve 127, and a top support member 54 is mounted similarly to the discharge valve 127 described above. In addition, the refrigerant gas system compressed in the upper cylinder 38 to reach a predetermined pressure presses the discharge valve 1 2 7 that closes the discharge port 39 (in FIGS. 20 and 21, for the sake of description, The same plane representation of the cylinder), open the row-39-200406547 out of port 3 9, discharge towards the discharge muffler chamber 62. At this time, since the other side of the discharge valve 1 27 is fixed to the top support member 54, the side contacting the discharge port 39 is reversely bent, and the check valve 1 2 7 that restricts the opening amount of the discharge valve 1 2 7 A touch. When the refrigerant gas discharge is completed, the discharge valve 1 2 7 is separated from the check valve 1 2 7 A, and the discharge port 39 is closed. On the other hand, in the upper and lower cylinders 38 and 40 are formed guide grooves for accommodating the blades 50 and 52, which are not shown, and a receiving section 70 located outside the guide grooves and accommodating the springs 76 and 78 as elastic members. , 72. The accommodating portions 70 and 72 are opened on the guide groove side and the sealed container 12 (the container body 12A) side. The above-mentioned springs 76 and 78 are in contact with the outer ends of the blades 50 and 52, and the blades 50 and 52 are often biased toward the rollers 46 and 48 side. In addition, metal receptacles 1 37 and 140 are provided in the accommodating portions 70 and / 72 on the side of the sealed container 12 of the springs 76 and 78 to prevent the springs 76 and 78 from coming off. The side of the container body 12A of the sealed container 12, the suction passage 60 (the top side is not shown in the figure) with the top support member 54 and the bottom support member 56, and the discharge muffler chamber 62 and the top The sleeves 141, 142, 143, and 144 are respectively welded and fixed at positions corresponding to the top side of the cover 66 (the position substantially corresponding to the bottom end of the electric component 14). The sleeves 141 and 142 are adjacent to each other along the upper and lower sides, and the sleeves 1 4 3 are located on a slightly diagonal line of the sleeves 1 4 1. The sleeve 144 is located at a position slightly offset from the sleeve 141 by 90 degrees. In addition, one end of a refrigeration introduction pipe 92 for introducing refrigerant gas into the upper cylinder 38 is inserted into the sleeve 141, and one end of the refrigeration introduction pipe 92 is connected to a suction passage (not shown) in the upper cylinder 38. Connected. The refrigerating guide -40-200406547 inlet pipe 92 extends to the sleeve 1 44 through the top side of the sealed container 12, and the other end is inserted into the sleeve 144 to communicate with the inside of the sealed container 12 in an inserting manner. In addition, one end of a refrigeration introduction pipe 94 for introducing refrigerant gas into the lower cylinder 40 is inserted into the sleeve 142 in an inserting manner, and one end of the refrigeration introduction pipe 94 communicates with the suction passage 60 in the lower cylinder 40. The other end of the cooling introduction pipe 94 is connected to the bottom end of a heat accumulator (not shown). In addition, the refrigerant discharge pipe 96 is inserted into the sleeve 143, and one end of the refrigerant introduction pipe 96 communicates with the exhaust muffler chamber 62. Here, in order to use a multi-stage compression type rotary compressor as shown in FIG. 20 in areas with low outside air temperature such as a cold area, it is necessary to change the excluded volume ratio of the first and second rotary compression members 3 2, 3 4 . That is, the above-mentioned change must be performed so that the exclusion volume of the second rotary compression member 34 is further reduced. In this case, for example, in order to set the excluded volume of the second rotary compression member 34 to 55% of the excluded volume of the first rotary compression member 32, as shown in FIG. 21, on the above upper cylinder 38, The expansion portion 1 1 0 is formed. The expanded portion 110 expands the outside of the cylinder 38 within a predetermined angle from the suction port 16 of the cylinder 38 and the rotation direction of the roller 46. The expansion section 110 can adjust the compression start angle of the refrigerant gas in the cylinder 38 to the rotation direction end of the roller 46 of the expansion section 110. That is, the compression start of the refrigerant in the cylinder 38 can be delayed at an angle of the expansion portion 110 where the cylinder 38 is formed. Therefore, the amount of the refrigerant gas compressed in the cylinder 38 can be reduced. As a result, It is possible to reduce the exclusion volume of the second rotary compression member 34. 1 4 1 200406547 In the example in FIG. 21, the expansion portion 1 1 is adjusted so that the excluded volume of the second rotary compression member 34 is 55% of the excluded volume of the first rotary compression member 32. Angle. This makes it possible to reduce the exclusion volume of the second rotary compression member 34 without changing the cylinder, roller, and eccentricity of the second rotary compression member 34, and to prevent the step pressure in the second stage (the suction pressure of the second rotary compression member and the (Difference in the discharge pressure of the second rotary compression member). That is, since the exclusion volume of the second rotary compression member 34 can be reduced only by forming the expansion portion 110 on the cylinder 38, it is possible to suppress an increase in cost due to the change of the member. In addition, since it is not necessary to change the balance of the rotating shaft 16 and also to change the weight 1 0 1 provided on the end face of the roller 24 of the electric component 14, the cost can be further reduced. Next, the multi-stage compression type rotary compressor 10 shown in FIG. 19 is a part of the refrigerant circuit of the water heater 153 shown in FIG. 19. That is, the refrigerant discharge pipe 96 in the multi-stage compression type rotary compressor 10 is connected to the gas cooler 154. Since the gas cooler 154 heats water to generate hot water, it is set in a hot water storage tank (not shown) of the water heater 153. The tube extending from the gas cooler 154 is connected to the evaporator 157 through an expansion valve 156 as a pressure reducer, and the evaporator 157 is connected to the refrigerant introduction pipe 94 via a heat accumulator (not shown). The operation of each embodiment will be described below. In the multi-stage compression type rotary compressor shown in FIG. 1, if the stator coil 28 in the electric component 14 is energized through the terminal 20 and a wiring not shown in the figure, the electric component is started; [4 -42- 200406547 The rotor 24 rotates. As a result of this rotation, the upper and lower rollers 46 and 48 fitted into the upper and lower eccentric portions 42 and 44 integrally set with the rotation shaft realize eccentric rotation inside the upper and lower cylinders 38 and 40. Thus, the low-pressure (4MpaG) is sucked into the low-pressure chamber side LR of the lower cylinder 40 through the suction passage 60 formed in the refrigerant introduction pipe 94 and the bottom support member 5 6. Degree) of refrigerant gas is performed by the action of the lower roller 4 8 and the lower blade 5 2! The segments compress and form intermediate pressure (about 8 M p a G). In addition, the refrigerant at the intermediate pressure is discharged from the high-pressure chamber side HR of the cylinder 40 through the discharge muffler chamber 64 and the communication passage from the intermediate discharge pipe 12 to the sealed container 12 on the bottom side of the electric component 14. Thereby, the inside of the sealed container 12 is at an intermediate pressure. Then, the discharge valve 1 2 8 provided in the discharge muffler chamber 64 is opened, and the discharge muffler chamber 64 and the discharge port 41 are communicated. In this way, the high-pressure chamber side of the lower cylinder 40 is discharged through the discharge port 41 to the formation. A muffler chamber 64 is discharged from the bottom support member 56. The refrigerant gas exhausted into the exhaust silencing chamber 64 is exhausted from the middle exhaust pipe 1 2 1 to the inside of the sealed container 12 through a communication hole not shown in the figure. The refrigerant having the intermediate pressure discharged into the discharge muffler chamber 64 flows into the counter-pressure chamber 52A of the first rotary compression member 3 2 (not shown) from the communication passage 100 as described above, and the spring 76 — The blade is pressed in the direction of the lower roller 48. On the other hand, the other refrigerant gas system discharged to the intermediate pressure of the discharge muffler chamber 64 enters the refrigerant introduction pipe 92, passes through the sealed container 12, and passes through the suction passage 5 9 of the second rotary compression member 3 4 and from the suction port 1 6 1 Suction into the low-pressure chamber side of the upper cylinder 38. At this time, the refrigerant gas is cooled while passing through the cooling introduction pipe 92 provided outside the sealed container 12. -43-200406547 The refrigerant gas system discharged from the middle discharge pipe 1 2 1 rises to the electric component 1 through the gap between the electric component i 4 or the electric component 1 4 (flat part 2 2 C) and the container body 1 2 A. Above 4, through the gap 22 A, two-thirds of the top side of the inlet 92A of the refrigerant introduction pipe 92 is sucked into the inside of the refrigerant introduction pipe 92. In this way, during the ascent of the sealed container 12, the oil system mixed into the refrigerant discharged from the intermediate discharge pipe 12 21 is separated, and the separated oil system is adhered to the wall surface of the container body 12 A from a flat surface.部 2 2 C and other parts flow down to the oil storage section 5 8. In addition, the oil discharged from the oil discharge hole 8 4 A of the auxiliary discharge member 8 4 at the top of the rotation shaft i 6 to the electric component 14 is also lowered on the inner surface of the sealed container 12 as shown by the black arrow in the figure. While cooling and lubricating the electric components 14, the electric components flow down to the oil storage portion 58. The refrigerant gas (including the oil described later) sucked into the refrigerant introduction pipe 92 passes through the suction passage (not shown) formed in the top support member 54 through the inside, and is also sucked in through the suction port shown in the figure. To the low pressure chamber side of the cylinder 38. In addition, those sucked into the refrigerant introduction pipe 92 include, in addition to the refrigerant gas, partially discharged oil from the intermediate discharge pipe 1 2 1 without separation, or an auxiliary discharge member 84 partially from the top end of the rotary shaft 16 The oil is discharged from the oil discharge hole 84A. The refrigerant gas system sucked into the intermediate pressure of the low-pressure chamber side of the cylinder 38 is compressed by the operation of the roller 46 and the blades (not shown) in the second stage to form high-temperature and high-pressure refrigerant gas, which passes through the high-pressure chamber side The discharge cymbals (not shown) are discharged to the outside through the discharge silencing chamber 6 2 formed on the top support member 54 and the refrigerant discharge pipe 96, and flow into a gas cooler (not shown). The refrigerant gas system in the container 12 passes through the gap 22 A and is sucked into the second rotary compression member 34 from the inlet 92A of the refrigerant introduction pipe 92. At this time, in addition to the refrigerant gas, a part of the unseparated oil discharged from the intermediate discharge pipe 1 21 or a part of the oil discharged from the oil discharge hole 84A of the auxiliary discharge member 84 at the top end of the rotary shaft 16 is removed from The inlet 92A of the refrigerant introduction pipe 92 is sucked and flows into the second rotary compression member 34. However, as shown in the left side of FIG. 5 (the rotary compressor is denoted by reference numeral 200), the inlet 92A of the refrigerant introduction pipe 92 is opened. Compared with the case of the bottom side of the electric component 14, the oil separation ability in the sealed container 12 is improved. In particular, as described above, the inner diameter of the oil discharge hole 8 4 A is set to a size that can suitably cool the electric components 14 in the sealed container 12 and lubricate each sliding portion. In addition, the amount of oil sucked into the second rotary compression member 34 through the refrigerant introduction pipe 92 is an appropriate amount. Therefore, the amount of oil entering the second rotary compression member 34 is effectively reduced. As a result, the amount of oil entering the second rotary compression member 34 can be adjusted to an appropriate amount, and a situation such as a decrease in the performance of the rotary compressor 10 can be avoided, and the disadvantage caused to the refrigerant circuit can be solved or suppressed. influences. In addition, as described above, since the refrigerant introduction pipe 92 is set so that a part of the inlet 9 2 A of the refrigerant introduction pipe 92 is located below the top end of the stator 22 of the electric component 14, the rotary compressor can be reduced. The height of 〇 can be suppressed to a substantially the same height as shown in the right side of the figure even when compared with the conventional rotary compressor 100 shown on the left side of FIG. 5. Therefore, the rotary compressor 10 is extremely suitable for applications such as vending machines and refrigerators with a small storage space and a limited compressor size. -45- 200406547 In addition, in the embodiment, the present invention is applicable to a two-stage compression rotary compressor 10, but it is not limited to this. The present invention is effective even for a rotary compressor with more stages. In addition, the oil passage 8 2 of the rotation shaft 16 is provided with an auxiliary discharge member 8 4 having an oil discharge hole 8 4 A as an adjustment mechanism. However, the oil adjustment mechanism is not limited to this, and may be reduced in size and formed on the rotation shaft. 1 6 The inner diameter of the oil discharge port 8 2 A at the top. The operation of the multi-stage compression type rotary compressor shown in Fig. 6 will be described below. As in the first figure, the refrigerant gas system discharged into the sealed container 12 passes through the gap 22A and is sucked into the second rotary compression member 34 from the inlet 92A of the refrigerant introduction pipe 92. At this time, as described above, in the second rotary compression member 34, in addition to the refrigerant gas, a part of the unseparated oil discharged from the intermediate discharge pipe 1 21 and the auxiliary discharge member 84 from the tip of the rotary shaft 16 A part of the oil discharged from the oil discharge hole 84A is sucked in from the inlet 92A of the refrigerant introduction pipe 92 and flows in. However, compared with the case where the inlet of the refrigerant introduction pipe is opened to the bottom side of the electric component as is conventionally known, the sealed container 1 The oil separation ability in 2 is improved. In particular, since the inner diameter of the oil discharge hole 84A is set to such a size as described above, the size can suitably cool the electric components 14 in the sealed container 12 and lubricate each sliding portion, and pass the refrigerant The amount of oil sucked into the second rotary compression member 34 by the introduction pipe 92 is a suitable amount, so the amount of oil that has entered the second rotary compression member 34 and discharged to the outside is effectively reduced. Thereby, the amount of oil entering the second rotary compression member 34 is adjusted to an appropriate amount, which can prevent the performance of the rotary compressor 10 from being prevented beforehand, and can also eliminate or suppress the adverse effect on the refrigerant circuit. 46-200406547 Here, the left side of FIG. 11 shows the rotary compressor 200 in a case where the top end portion of the stator 22 is opened to the inlet 92A of the refrigerant introduction pipe 92, and the right side of FIG. 11 shows the rotation of the present invention. Compressor 1 〇. As can also be seen from the figure, in the rotary compressor 10 of the present invention, since the sleeve 144 of the fixed refrigerant introduction pipe 92 is lowered to the height of the electric component 14, the height of the compressor is significantly reduced compared with the case on the left in the figure. . As a result, the height of the rotary compressor 10 can be significantly reduced. For example, the rotary compressor 10 is suitable for use in vending machines, refrigerators, and the like having a small storage space and a limited compressor size. 9 and 10 show the structure of another embodiment of the present invention. In this case, the sleeves 1 4 4 are fixed to the container body 12A corresponding to the flat portion 22C formed on the side surface of the stator 22, and the inlet 92A of the refrigerant introduction pipe 92 is also opened inside the flat portion 2 2C. That is, in this case, the planar portion 2 2 c has the effect of achieving the notch of the present invention. The width of the flat portion 22C is set to be the same as or slightly smaller than that of the inlet 9 2 A. Also in this solution, the height of the rotary compressor 10 can be reduced, as described above. However, since the refrigerant gas at the bottom side of the electric component 14 can also flow into the refrigerant introduction pipe 92, a case is considered in which, as described above, only the refrigerant gas at the top side of the electric component 14 flows into the refrigerant introduction. In the case of the tube 92, the oil separation performance in the inner space of the sealed container 12 is deteriorated. However, since it is not necessary to provide a special notch 2 2 A as described above, there is an advantage that production costs can be reduced. The operation of the multi-stage compression rotary compressor shown in Fig. 12 is described below. As in the first figure, the refrigerant gas sucked into the intermediate pressure of the low-pressure chamber side of the cylinder 38 is moved by the roller 46 and the blades (not shown in the figure) to enter the second stage of the 200406547 line of compression to form a high-temperature and high-pressure The refrigerant gas is discharged from the high-pressure chamber side through a discharge port (not shown) through a discharge muffler chamber 62 and a refrigerant discharge pipe 96 formed in the top support member 54 to the outside, and flows into a gas cooler (not shown). Here, the refrigerant introduced into the refrigerant introduction pipe 92 includes, in addition to the refrigerant gas, a part of the oil that is discharged from the intermediate discharge pipe 1 2 1 without being separated, and an oil discharge hole from an auxiliary discharge member 84 at the tip of the rotary shaft 16. 84A part of the drained oil. The present invention is structured in such a manner that the oil discharge amount is adjusted by changing the size of the oil discharge hole 8 4 A of the auxiliary discharge member 8 4. The following Table 1 shows the inner diameter of the oil discharge hole 84A, the amount of oil sucked into the second rotary compression member 34, and the lubricity of the rotary compression member 34 (the second-stage oil supply amount and the second-stage lubricity). . Table 1 Method 2 Fuel Supply Lubricity Current method Intermediate discharge (under electric components) No oil passage clogging 15% 〇Exploration method① Intermediate discharge (under electric components) No oil passage clogging 10 ~ 15% 〇Exploration methods ② Intermediate Drain (under the electric component) Oil passage blocked 4 holes 7 to 10% φResearch method ③ Intermediate discharge (under the electric component) Oil passage blocked # 2 hole 5% 〇 Discussion method ④ Intermediate discharge (under the electric component) Oil passage blocked ρ1 bar 2% △ 200406547 In addition, the oil supply amount in the second stage of Table 1 indicates the amount of oil flowing out of the sealed container side, and is calculated by the oil circulation amount in the refrigerant circuit / the circulation amount in the refrigerant circuit + the oil circulation amount. In addition, the test was performed under the same conditions as the amount of suction on the oil reservoir 5, oil clay, ambient temperature, the capacity of the rotary compressor 10, and the number of rotations of the member 14. The column of the current practice in this table indicates the case where it is discharged in the middle of the lower sealed container 12 of the electric component 14 and further from the lower part of the electric component 14 to the refrigerant introduction pipe 9 2 (the seal is not passed through the auxiliary discharge member 8 4 Lu 8 2), in this case, the second-stage oil supply is large and it is 1 5%, and the lubrication is discussed in the table. ① refers to the bottom of the electric | as shown in Figure 13 toward the sealed container 1 2 The middle discharge from the electric | from the top to the refrigerant introduction pipe 9 2 shows the seal of the oil passage 8 2 and the auxiliary discharge member 8 4. In this case, the second stage fuel supply is between 10 and 15 In the range of%, the lubricity is good. The discussion method ② in the table indicates that the middle discharge in the sealed container 12 is performed under the electric component 14 and from the upper part of the electric component 14 to the inlet pipe 92. The oil discharge port at the top of the oil passage 82 is displayed to assist the discharge member. When enclosed by 84, the size of the oil discharged by the auxiliary discharge member 84 is ¢) 4 (inner diameter is 4mm). In this case, the second stage is less and the range is 7 to 10%, and the lubricity is good. . In addition, the investigation method ③ indicates that the middle discharge in the sealed container 12 is performed below the electric component 14 and the discharge from the upper portion of the electric component 14 to the inlet pipe 9 2 is displayed outside the oil discharge port 1 2 at the top of the oil passage 8 2. The oil and electric side of the refrigerant 8 are carried out, and the suction and oil-sealing permeability is good. The capture 14 is not assisted and often faces the dense refrigerant guide 82A as the hole 84A. The oil supply amount is directed toward the dense refrigerant guide 82A as 200406547 to assist the discharge. When it is closed by 84, and the size of the oil discharge hole 84A of the auxiliary discharge member 84 is ¢ 2 (inner diameter of 2 mm), the second stage oil supply in this case is small and 5%, and the lubricity is good. . In addition, the investigation method ④ indicates that the middle discharge to the inside of the sealed container 12 is performed under the electric component 4 and the discharge from the upper portion of the electric component 14 to the refrigerant introduction pipe 92 shows that the oil discharge port 82A at the top of the oil passage 82 is When the auxiliary discharge member 84 is closed, and the size of the oil discharge hole 84A of the auxiliary discharge member 84 is P 1 (the inner diameter is 1 mm), the fuel supply amount in the second stage of this case is significantly reduced to 2%, but Poor lubricity. From these results, it can be seen that when the inner diameter of the oil discharge hole 84A of the auxiliary discharge member 84 is in the range of 9 1 · 5 to φ 3, the amount of oil flowing out of the refrigerant circuit can be reduced, and the second rotation can be ensured. The circulation of the compression member 34. Therefore, in the present embodiment, the oil supply amount in the second stage is _ 5%, and the oil drain hole 84A having a good lubricating property is used as the discussion method. The diameter of the oil discharge hole 84A is ρ 2. That is, in order to adjust the amount of oil discharged into the top of the sealed container 12, the oil discharge port 8: 2A at the top end of the oil passage 82 is provided with an auxiliary discharge member 8 4 which is a research method ③. The oil sucked up by the oil reservoir 58 is drained to the top of the sealed container 12 from the oil discharge hole 84A through the oil passage 82 of the rotating shaft 16 in an appropriate amount. In addition, during cooling and circulation of the electric components 14 and the like, a part of the oil discharged into the sealed container 12 flows into the oil storage portion 58, and the remaining appropriate amount of oil flows from the electric components 14 into the refrigerant introduction. The tube 92 is sucked into the cylinder 38 of the second rotary compression member 34. The oil discharge holes 84A formed in the auxiliary discharge member 84 are not limited to one part of the embodiment, and a plurality of oil discharge holes 84A may be provided. In this case, it is apparent that the total cross-sectional area of the multiple oil discharge holes of -50-200406547 is the same cross-sectional area as the oil discharge hole 84A of the embodiment. As described above, the oil discharge port 82A located at the tip of the oil passage 82 of the rotary shaft 16 is not provided with the rotary compressor (the above-mentioned auxiliary discharge member 84 for adjusting the inner diameter of the oil discharge hole 82A) In the type shown in FIG. 13), the oil is drained from the oil discharge port 82A located at the top of the oil passage 82 to the inner top of the sealed container 12 (black arrow in the figure), but the oil from the oil discharge hole 82A The discharge amount is large, and a large amount of oil discharged from the oil discharge hole 82A is sucked into the refrigerant introduction pipe 92. This oil, after being compressed by the second rotary compression member 34, is discharged out of the sealed container 12, which results in degradation of the performance of the rotary compressor 10 such as lubrication and sealing, and also adversely affects the inside of the refrigerant circuit. However, according to the present invention, an auxiliary discharge member 84 is provided in the oil discharge port 82A provided in the oil passage 82 of the rotary shaft 16, and the auxiliary discharge member 84 is formed with an oil discharge for adjusting the inner diameter of the discharge port 82A. In the hole 84A, the amount of oil discharged from the oil discharge hole 84A is appropriately adjusted, whereby the amount of oil sucked from the refrigerant introduction pipe 92 into the second rotary compression member 34 can be appropriately set. Thereby, the amount of oil discharged from the second rotary compression member 34 to the outside can be reduced, and the second rotary compression member 34 can be appropriately lubricated. : Here, in the embodiment, in order to apply the present invention to a two-stage compression rotary compressor 10 in general, the present invention is not limited to this, and the present invention is also effective for more stages of rotary compressors. In addition, the oil passage 82 of the rotary shaft 16 is provided with an auxiliary discharge member 84 having an oil discharge hole 84 as an adjustment mechanism. However, the oil adjustment mechanism is not limited to this, and may be reduced in size and formed on the rotary shaft 16 The inner diameter of the oil discharge port 8 2 A at the end of the top-51- 200406547. The operation of the multi-stage compression type rotary compressor shown in Fig. 14 will be described below. As in the first figure, the oil drained from the oil discharge port 8 2 A at the top of the rotating shaft 16 to above the electric component 14 also drops inside the sealed container 12. While cooling and lubricating the electric component 14, It flows into the oil storage portion 58, and a part of the oil discharged from the oil discharge port 82A to the upper side of the electric component 14 passes through the inlet 92A and passes through an unillustrated portion formed on the refrigerant introduction pipe 92 and the top support member 54. The suction passage also sucks into a low-pressure chamber side of the cylinder 38 from a suction port (not shown). In addition, if the oil drops in the sealed container 12 and flows into the oil storage section 58, the foreign matter remaining in the sealed container 12 is accumulated in the oil storage section 58. Next, at the turbidity discharge port 8 from the tip of the rotation shaft 16, 2.  Of the oil discharged from A, the oil remaining in the oil storage portion 58 is sucked up by the oil pump P and discharged, and then the foreign matter accumulated in the oil storage portion 5 8 is also discharged from the oil drain port 8 at the top of the rotating shaft 16 2 A is discharged. In addition, a part of the oil discharged from the oil discharge port 82A or a foreign substance mixed in the oil enters the refrigerant introduction pipe 92 from the inlet 92A. However, since the filter 130 is provided at the inlet 92A of the refrigerant introduction pipe 92, Foreign matter such as dust, cuttings, etc. entering the refrigerant introduction pipe 92 from the inlet 92A is filtered by the filter 130, and only the oil and refrigerant gas remaining in the foreign matter are sucked into the low-pressure chamber side of the cylinder 38 from the suction port. The refrigerant gas system of intermediate pressure sucked into the low-pressure chamber side of the cylinder 38 is compressed in the second stage by the operation of the roller 46 and the blades (not shown) to form a high-temperature and high-pressure refrigerant gas that passes through the high-pressure chamber side. The row -52- 200406547 not shown in the figure exits the port, passes through the discharge silencing chamber 6 formed on the top support member 54, and the refrigerant discharge pipe 96 is discharged to the outside and flows into a gas cooler and the like not shown in the figure. In addition, after the refrigerant is radiated by a gas cooler, it is decompressed by a pressure reducer or the like not shown in the figure, and it also flows into an evaporator not shown in the figure. Here, the refrigerant is evaporated, and the refrigerant is sucked into the first rotary compression member 32 from the refrigerant introduction pipe 94 through the heat accumulator, and the cycle is repeated. In this way, the filter 130 is provided at the inlet 92A of the refrigerant introduction pipe 92 for introducing the second rotary compression member 34, so when the rotary compressor 10 is manufactured, the filter 130 can be used to retain the remaining in the sealed container. Filter foreign materials such as dust and chips in 1 and 2. This prevents wear or lock-up of the rotary compression mechanism portion 18, and thus improves the reliability of the rotary compressor 10. Next, a rotary compressor 10 according to another embodiment of the present invention is shown in Fig. 15. In this case, the filter 130 is configured in the same manner as described above, and the opening 130A is located on the upstream side of the refrigerant gas, and the front end 130B side is on the downstream side of the refrigerant gas. Installed in the outlet 92c of the refrigerant introduction pipe 92. As a result, when manufacturing the same rotary compressor 10 as described above, foreign matter such as ash and cutting chips remaining in the sealed container 12 is sucked into the second rotary compression member 34 from the refrigerant introduction pipe 92. Then, it can be captured and filtered by the filter 1 30. In addition, in this example, the filter 1 30 is installed in the sleeve 1 4 4, but it can also be installed in the outlet 92C of the refrigerant introduction pipe 92 (both on the outlet side of the refrigerant introduction pipe 92) as described above. Next, a rotary compressor 10 according to still another embodiment of the present invention is shown in FIG. 16. In this case, a filter 1 3 1 (filter mechanism) is installed between the inlet 92A and the outlet 92 c 200406547 of the refrigerant introduction pipe 92. The filter screen 1 3 1 is formed of a casing 1 3 2 and a filter 1 3 0 which is the same as that described above and installed in the casing 1 3 2. The filter 1 3 0 is configured in the same manner as described above, and its opening portion 130 A side is positioned upstream of the refrigerant gas, and the front end portion 130 B side is positioned downstream of the refrigerant gas, and is closely mounted to the housing 1 3 2 Inside. In this structure, since the filtering mechanism is provided outside the sealed container 12, the assembling workability is improved. In addition, when the same rotary compressor 10 as described above is manufactured with this structure, when foreign matter such as dust, cuttings, and the like remaining in the sealed container 12 enters the refrigerant introduction pipe 92, the foreign matter can pass through The filter 130 captures and filters. In this case, since the case 1 32 is larger than the refrigerant introduction pipe 92, and a filter 1 31 is provided in the case 1 3 2, the filtering at the inlet 92A and the outlet 92C of the refrigerant introduction pipe 92 can be increased. The container 130 receives the capacity of the filtered foreign matter. In addition, in the embodiment, although the present invention is applied to a two-stage compression rotary compressor 10, the present invention is not limited to this, and the present invention is also effective for a rotary compressor of more stages. The operation of the multi-stage compression type rotary compressor shown in Fig. 17 will be described below. As in the first figure, the refrigerant gas system sucked into the low-pressure chamber side of the upper cylinder '38 is compressed by the action of the upper roller 46 and a blade not shown in the figure to form a high-pressure refrigerant (about 10 to 12 MpaG). The gas is discharged from the high-pressure chamber side of the cylinder 38 into a discharge muffler chamber 62 through a discharge port (not shown). The refrigerant gas discharged into the discharge muffler chamber 62 is discharged from the discharge hole 120 to the bottom side of the electric component 14 in the sealed container 12, from the stator 22 and the rotor 24 of the electric component 14, or between them. And the stator 22 and the sealed container 1 2 -54- 200406547 pass and rise, and reach the top side of the electric component 14. At this time, almost all of the oil mixed in the refrigerant gas is separated from the refrigerant gas in the sealed container 12 and flows down the inside of the sealed container 12 to be stored in an oil storage portion provided at the bottom of the sealed container 12. On the other hand, the refrigerant gas is discharged from the refrigerant discharge pipe 96 opened on the top side of the electric component 14 to the external refrigerant circuit of the rotary compressor 10. Thus, the refrigerant gas compressed by the second rotary compression member 34 is discharged. In the sealed container 12, the high-pressure refrigerant gas in the sealed container 12 is discharged to the outside. Therefore, in the sealed container 12, the oil contained in the refrigerant gas discharged from the second rotary compression member 34 can be separated. . This improves the oil separation performance and reduces the amount of oil flowing out of the refrigerant circuit to the outside of the rotary compressor 10. Therefore, it is possible to suppress the adverse effect on the external refrigeration cycle. This case is effective in the case of a low-pressure cooling system (such as an on-board air conditioner). In addition, since the inside of the sealed container 12 is under a high pressure, oil supply to the first rotary compression member 32 can be performed according to a pressure difference, and the oil discharged together with the refrigerant gas is directly supplied from the first rotary compression member 32 to the first rotary compression member 32. Since the 2 rotation compression member 34 is rotated, the oil supply to the second rotation compression member 34 is also performed without any obstacle. Further, since the refrigerant gas sucked into the second rotary compression member 34 contains sufficient oil, the temperature rise of the second rotary compression member 34 can be reduced. This prevents the temperature rise of the electric components 14 during high compression operation. Due to the above, a multi-stage compression rotary compressor 10 with high performance and high reliability can be provided. -55- 200406547 In particular, since a refrigerant introduction pipe 92 is provided, the refrigerant introduction pipe is used to send the refrigerant gas discharged from the first rotary compression member 32 through the outside of the device 12 to the second rotary compression member 3 Therefore, the temperature of the refrigerant gas that can be introduced into the second rotary compression member 34 can increase the compression efficiency of the compressor 10 and improve its reliability. The operation of another embodiment of the present invention will be described below. As described above, the back pressure chamber for applying back pressure to the blades 52 in FIG. 17 and the discharge muffler chamber 64 of the first rotary compression member 32 are connected to each other. Therefore, the pressure compressed by the first rotary compression member 32 is compressed. The intermediate pressure medium gas is supplied to 52A of the blades 52 in the first rotary compression member 32, and the blades 52 are pressed in the direction of the roller 48. Thereby, as compared with the case where a high pressure is applied to the first rotary compression blade 5 2 as a back pressure, the inside of the first rotary compression member 3 2 40 and the back pressure chamber 52A (not shown) are caused. The pressure difference reduces the front-end load of the light blade 52. As a result, the compressor 10 can be increased. In addition, since the refrigerant gas leaking from the blades of the first rotary compression member 32 and leaked into the cylinder 40 can be reduced, the compression efficiency can be improved. In addition, the cold compressed by the second rotary compression member 34 is discharged to Since the high-pressure body in the sealed container 12 is discharged to the outside in the sealed container 12, the oil contained in the refrigerant gas discharged from the second rotating member 34 can be separated in the sealed container 12. This improves performance and reduces the amount of oil in the refrigerant circuit to the outside of the rotary compressor. Therefore, adverse effects on the external refrigeration cycle can also be suppressed in low-pressure cooling systems (vehicle air conditioners, etc.) ) Are: 92 cylinders with a sealed capacity to reduce suction and improve rotation due to the cold back pressure chamber thin piece 32 such as 52A, road 100 force, can reduce the reliability Γ 52: rate. Medium gas Refrigerant gas Compression structure The outflow of oil separation. The 200406547 occasion of this object is valid. In addition, since the first and second rotary compression members 32 and 34 are provided on the bottom side of the electric component 14, the first rotary compression member 32 is provided on the bottom side of the second rotary compression component 34, and The top side of the member 14 discharges the refrigerant gas in the sealed container 12 to the outside, so that the oil separation performance of the high-pressure gas refrigerant in the sealed container 12 can be further improved. In addition, as described above, the structure of the present invention is extremely effective for a case where carbon dioxide having a large high-low pressure difference is used as a refrigerant. In addition, in the embodiment, although the present invention is applied to a vertical rotary compressor, it is not limited to the scope of the first 11, 12, 3, and 16 patent applications of the present invention. The present invention is also effective in a so-called horizontal multi-stage compression type rotary compressor in which a horizontally long sealed container 12 is provided with electric components 14 and a rotary compression mechanism portion 18 side by side. The operation of the multi-stage compression type rotary compressor shown in Fig. 18 will be described below. As in FIG. 1, the intermediate-pressure refrigerant gas in the sealed container 12 passes through the refrigerant introduction pipe 9 2, passes through a suction passage (not shown) formed in the top support member 54, and is sucked from the suction port 1 6 1 to The low-pressure chamber side of the upper cylinder 38. The sucked intermediate-pressure refrigerant gas is compressed in the second stage by the operation of the upper roller 46 and the upper blade 50 to form a high-temperature and high-pressure refrigerant gas. As a result, the discharge valve 1 2 7 set in the discharge muffler chamber 62 is opened, and the discharge muffler chamber 62 communicates with the discharge port 39. As a result, the high-pressure chamber side of the upper cylinder 38 passes through the discharge port 39 To the exhaust muffler chamber 62 formed on the top support member 54. Also, the high-pressure refrigerant gas discharged to the discharge muffler chamber 62 passes through the refrigerant -57-200406547 discharge pipe 96 and flows into the gas cooler 154. At this time, the temperature of the refrigerant rises to about + 100 ° C. The high-temperature and high-pressure refrigerant gas releases heat from the gas cooler 154, and heats water in a hot water storage tank (not shown) to form about +90. ° C hot water. In this gas cooler 154, the refrigerant itself is cooled, and it is discharged from the gas cooler 154. Next, after the pressure is reduced by the expansion valve 156, it flows into the evaporator 1 57 and evaporates (at this time, heat is absorbed from the surroundings), passes through a heat accumulator (not shown), and is sucked in from the refrigerant introduction pipe 94 to the first rotary compression. This cycle is repeated in the member 32. As described above, in the case where a multi-stage compression rotary compressor for normal temperature is used in a cold area, the cylinder constituting the second rotary compression member 34 is expanded to the outside within a predetermined angle range from the suction port 16 to the rotation direction of the roller 46. The compression start angle of the second rotary compression member 34 is adjusted to delay the compression start of the refrigerant in the cylinder 38 of the second rotary compression member 34, thereby reducing the discharge volume of the second rotary compression member 34. Thereby, without changing the components such as the cylinder 38 or the roller 46 of the second rotary compression member 34, the eccentric portion 42 of the rotary shaft 16, and the like, the exclusion volume of the second rotary compression member 34 can be set to be suitable. In this way, costs caused by component changes can be reduced. In the embodiment, the multi-stage compression type rotary compressor 10 in which the rotary shaft 16 is vertical is described. However, it is obvious that the present invention can also be applied to the multi-stage compression type rotary compressor in which the rotary shaft is horizontal. In the above, the multi-stage compression rotary compressor has been described with a two-stage compression rotary compressor having first and second rotary compression members. However, -58- 200406547 is not limited to this, and the rotary compression member may be used. A multi-stage compression type rotary compressor having a three-stage, four-stage, or more rotary compression member. According to the present invention as described in detail above, the present invention relates to an internal intermediate pressure type multi-stage compression rotary compressor. The sealed container includes: an electric component; and a first and a second rotary compression component are located on the electric component. And driven by the rotating shaft of the electric component; discharging the refrigerant gas compressed by the first rotary compression member into a sealed container, and compressing the discharged intermediate pressure refrigerant gas by the second rotary compression member, A refrigerant introduction tube is provided therein, which is opened in a sealed container on the top side of the electric component, and is used to introduce the refrigerant gas in the sealed container into the second rotary compression member through the outside of the sealed container, and introduce the refrigerant into the tube. Compared with the case where the refrigerant inlet pipe is partly located below the top end of the stator of the electric component and the refrigerant inlet pipe is opened to the bottom side of the electric component, the intake of the refrigerant into the refrigerant inlet pipe can be reduced. The amount of oil discharged from the rotary compression member to the outside is reduced, and the amount of oil discharged from the second rotary compression member to the outside is reduced, and the rotation can be effectively solved. Both the lubrication of the compressor, reduce the sealing performance, the adverse effects caused by an external refrigerant circuit and the oil occurs. In addition, since the installation position of the refrigerant introduction pipe is also lowered, it is possible to provide equipment suitable for reducing the height of the compressor, such as a vending machine, a refrigerator, and the like, in which the storage space is reduced and the size of the compressor is restricted. (V) Brief Description of Drawings Figure 1 is a longitudinal sectional view of an internal intermediate pressure type multi-stage compression rotary compressor to which an embodiment of the present invention is applied; Figure 2 is a first rotary compression member of the rotary compressor of Figure 1- 59- 200406547 plan view of the cylinder; Figure 3 is a longitudinal sectional view of the top of the rotary shaft of the rotary compressor of Figure 1; Figure 4 is a plan view of the rotary shaft of the rotary compressor of Figure 1 Figure 5 FIG. 1 is a schematic longitudinal cross-sectional view showing a comparison of the height of the rotary compressor in FIG. 1 and a conventional rotary compressor provided with an inlet for a refrigerant introduction tube at the bottom side of a conventional electric component; FIG. 6 is an internal intermediate pressure to which an embodiment of the present invention is applied; A longitudinal sectional view of a multi-stage compression type rotary compressor; FIG. 7 is a plan sectional view of the rotary compressor of FIG. 6; FIG. 8 is an enlarged sectional view of a notched portion of the stator of the rotary compressor of FIG. 6; FIG. 9 is a plan sectional view of an internal intermediate pressure multi-stage compression rotary compressor according to another embodiment of the present invention; FIG. 10 is an enlarged sectional view of a planar portion of a stator of the rotary compressor of FIG. 9; A longitudinal cross-sectional view for comparing the height of a rotary compressor when a refrigerant introduction pipe is opened at the top end of a stator of an electric component, and the rotary compressor according to the embodiment of the present invention; FIG. 12 is an internal intermediate pressure to which the present invention is applied; A longitudinal sectional view of still another embodiment of the multi-stage compression rotary compressor of the type; FIG. 13 is an internal intermediate pressure type multi-stage connected to the refrigerant introduction pipe on the top of the electric component as a comparative example for the description of the invention of FIG. 12 Pressure-60-200406547 A longitudinal sectional view of a P-compressor of a shrinkable screw type; Fig. 14 is a longitudinal sectional view of a rotary compressor of another embodiment of the internal intermediate pressure type multi-stage compression type to which the present invention is applied. Fig. 15 is a longitudinal sectional view of a rotary compressor. The internal intermediate pressure type multi-stage compression screw to which the invention of Fig. 14 is applied.  A longitudinal sectional view of still another embodiment of the rotary j compressor; FIG. 16 is a longitudinal sectional view of another embodiment of the internal intermediate pressure type multi-stage compression rotary compressor to which the invention of FIG. 14 is applied; This is a vertical sectional view of a vertical rotary compressor according to still another embodiment of the present invention. Figure 18 is a vertical sectional view of a multi-stage compression rotary compressor according to another embodiment of the present invention. FIG. 19 is a view to which the present invention is applicable. The oil supply device in the embodiment of the rotary compressor: a schematic diagram of the refrigerant cycle. Figure 20 is the first and first sections of the rotary compressor of Figure 18 for normal temperature; 2 is a longitudinal sectional view of the cylinder of the rotary compression member; Fig. 21 is a longitudinal sectional view of the cylinders of the first and second rotary compression members of the rotary compressor of Fig. 18 for a cold area to which the present invention is applied. 9 Fig. 22 shows conventional rotary compression for normal temperature and cold use. Vertical sectional view of the cylinder of the second rotary compression member in the machine. [Explanation of component symbols] 10 rotary compressor 12 sealed container 1 2A container body 1 2B end cap

200406547 1 2D installation hole 14 Electric component 16 Rotary shaft 18 Rotary compression mechanism portion 20 Terminal 22 Stator 22k Notch 22B Fitting portion 22C Flat portion 24 Rotor 26 Stacked body 28 Stator coil 30 Stacked body 32 First rotary compression member 34 2nd rotary compression member 36 Intermediate partition plate 38, 40 Cylinder 39, 41 Discharge port 42, 44 Eccentric shaft 46, 48 Roller 52 Blade 52A Counter pressure chamber 54 Top support member 56 Bottom support member

-62- 200406547 58 Oil reservoir 59,60 Suction passage 62,64 Discharge muffler chamber 66 Top cover 68 Bottom cover 72 Guide groove 72A Receiving section 7 6 Spring 82 Oil passage 82A Oil discharge hole 84 Auxiliary drain 84A Oil discharge hole 92 , 94 Refrigerant introduction pipe 92A inlet 96 Refrigerant discharge pipe 100 Communication path 101 Counterweight 102 Oil 103 Oil separation plate 110 Expansion 120 Discharge hole 121 Intermediate discharge pipe 127, 128 Discharge valve 130 Filter 63 200406547 1 30A 1 30B 13 1 141 , 142, 143 153 154 156 157

161, 162 MG Opening part Front end filter 144 Casing water heater Gas cooler Expansion valve Evaporator Suction 璋 Permanent magnet

Claims (1)

200406547 The scope of patent application: 1 · An internal intermediate pressure multi-stage compression rotary compressor, which has: an electric component in a sealed container; the first and second rotary compression components are located below the electric component, and Driven by the rotating shaft of the electric component; discharging the refrigerant gas compressed by the first rotating compression member into the sealed container, and further compressing the discharged intermediate pressure refrigerant gas by the second rotating compression member, characterized in that: There is a refrigerant introduction pipe, which opens in a sealed container on the top side of the electric component, and is used to send the refrigerant gas in the sealed container to the second rotary compression member through the outside of the sealed container. The introduction pipe is set such that a part of the refrigerant introduction pipe described above is positioned below the top end of the stator of the electric component. 2 · If the internal intermediate pressure type multi-stage compression rotary compressor of item 1 of the patent application scope, wherein an oil passage is formed in the above-mentioned rotary shaft, and an adjustment mechanism is set and the adjustment mechanism is used to adjust the oil passage The inside diameter of the oil discharge port. 3. An internal intermediate pressure type multi-stage compression rotary compressor, in a sealed container, comprising: an electric component; first and second rotary compression components, which are located below the electric component, and use the rotary axis of the electric component; Driven; The refrigerant gas compressed by the first rotary compression member is discharged into the sealed container, and the discharged second-pressure refrigerant gas is compressed by the second rotary compression member, which is characterized in that: a refrigerant introduction pipe is provided, It is used to introduce the refrigerant gas in the sealed container on the top side of the electric component through the outside of the sealed container into -65- 200406547 into the second rotary compression member; on the stator side of the electric component, A gap is formed corresponding to the inside of the upper stomach and the stomach of the person, and at the same time, the gap of the stator 111 ^^ 1 ^ for the refrigerant introduction pipe is corresponding. 4. If the internal intermediate pressure type multi-segment ® @% _ compressor of item 3 of the patent application scope, wherein the top end of the above-mentioned stator notch is opened in a sealed container in the top side of the 1 @weixia force member, and the bottom end is seal. 5. If there is an internal intermediate 懕 -type multi-stage rotary compressor in the scope of the patent application item 3 or 4, it has an adjustment mechanism to adjust the inner diameter of the '油 wei @ @ 油 排' outlet, and the oil passage Formed in the above-mentioned rotating shaft ° 6. A rotary compressor having, in a sealed container, an electric component; first and second rotary compression components, the first and second rotary compression components being located below the electric component, and The refrigerant gas compressed by the first rotary compression member is discharged into the sealed container by the rotating shaft of the electric component, and the discharged intermediate pressure refrigerant gas is further compressed by the second rotary compression member. The compressor includes: a refrigerant introduction pipe for introducing the refrigerant gas in the sealed container on the top side of the electric component into the second rotary compression component; an oil passage formed in the rotary shaft and located from the rotation An oil discharge port at the tip of the shaft discharges oil; an adjustment mechanism is used to adjust the inner diameter of the oil discharge port of the oil passage. 7 · A method for manufacturing a rotary compressor, comprising: an electric component in a sealed container; first and second rotary compression components, which are located below the electric component and are driven by a rotary shaft of the electric component; The first rotary compression mechanism -66- 200406547 compresses the refrigerant gas compressed into the sealed container, and further compresses the exhausted intermediate pressure refrigerant gas with the second rotary compression member, which is characterized by: The refrigerant gas in the sealed container is introduced into the second rotary compression member, and an oil passage is formed in the rotary shaft. The oil is discharged from the oil discharge port located at the tip portion, and the inner diameter of the oil discharge port is adjusted to adjust the oil. Discharge. 8 · A multi-stage compression rotary compressor, which includes: an electric component in a sealed container; first and second rotary compression components driven by the electric component; and exhausts the refrigerant gas compressed by the first rotary compression component to In the sealed container, the discharged second-pressure refrigerant gas is compressed by a second rotary compression member. The compressor includes: a refrigerant introduction pipe for passing the refrigerant gas in the sealed container through the sealed container. It is introduced into the second rotary compression member, and a filter mechanism is provided on the inlet side of the refrigerant introduction pipe. 9. A multi-stage compression type rotary compressor, comprising: an electric component in a sealed container; first and second rotary compression components driven by the electric component; and discharging refrigerant gas compressed by the first rotary compression component to In the sealed container, the discharged second-pressure refrigerant gas is compressed by a second rotary compression member. The compressor includes: a refrigerant introduction pipe for passing the refrigerant gas in the sealed container through the sealed container. In addition, it is introduced into the above-mentioned second rotary compression member; a filtering mechanism is provided at the outlet of the refrigerant introduction pipe J ° 10. A multi-stage compression rotary compressor, which has: electric components in a sealed container; -67- 200406547 The first and second rotary compression members are driven by the electric component; the refrigerant gas compressed by the first rotary compression member is discharged into the sealed container, and the discharged intermediate pressure is compressed by the second rotary compression member. The refrigerant gas is characterized in that the compressor includes: a refrigerant introduction pipe for passing the refrigerant gas in the sealed container through the seal. Outside is introduced into the second rotary compression member; filter mechanism, disposed in the refrigerant line introduction pipe. 1 1 · A multi-stage compression rotary compressor having an electric component in a sealed container; first and second rotary compression components driven by the electric component; and compressing the second rotary compression component to the first rotary compression component The compressed refrigerant gas is characterized in that the compressor includes: discharging the refrigerant gas compressed by the second rotary compression member into the sealed container, and discharging the high-pressure refrigerant gas in the sealed container to the outside. 1 2. A multi-stage compression type rotary compressor, which includes: an electric component inside a sealed container; first and second rotary compression components driven by the electric component; and compressing the second rotary compression component with the first rotation. The refrigerant gas compressed by the compression member is provided with a roller, which is a cylinder constituting the first rotary compression member and eccentrically rotated inside the cylinder; and a blade is in contact with the roller to divide the inside of the cylinder. The high pressure chamber side and the low pressure chamber side; the back pressure chamber is formed in the cylinder to apply back pressure to the blade;-6 8-200406547 discharges the refrigerant gas compressed by the second rotary compression member to the above Inside the sealed container, the high-pressure refrigerant gas in the sealed container is discharged to the outside, and the discharge side of the first rotary compression member is communicated with the back pressure chamber. 13. If the multi-stage compression rotary compressor of item 11 or item 12 of the scope of patent application, a refrigerant introduction pipe is provided, which is used to pass the refrigerant gas discharged from the i-th rotary compression member through the sealed container. Outside, it is fed into the second rotary compression member. 14. The multi-stage compression rotary compressor according to any one of the items 1, 11, 2, 13 in the scope of patent application, wherein the first and second rotary compression members are provided on the bottom side of the electric component, and the above The first rotary compression member is provided on the bottom side of the second rotary compression member, and discharges the refrigerant gas in the sealed container from the top side of the electric component to the outside. 1 5 · The multi-stage compression rotary compressor according to any one of the scope of patent applications No. 11, 1, 2, and 13, in which carbon dioxide is used as a refrigerant. 1 6 · A multi-stage compression rotary compressor, which includes an electric component inside a sealed container; first and second rotary compression components driven by the electric component; refrigerant gas that is compressed and discharged by the first rotary compression component The second compression and rotation member is attracted to the second compression and rotation member, and is compressed and discharged. The cylinder system constituting the second rotation and compression member is within a predetermined angle from the suction port in the rotation direction of the roller. Dilate towards the outside. 1 7 · A method for setting the exclusion volume ratio of a multi-stage compression rotary compressor, which includes in a sealed container: an electric component; first and second rotary compression components driven by the electric component; and the first rotary compression component The compressed refrigerant gas discharged from -69-200406547 is sucked into the second compression rotary member, and is compressed and discharged. The feature is that the cylinder system constituting the second rotary compression member is arranged along the roller from the suction port. Within the range of the predetermined angle of the rotation direction, it expands outward, and by adjusting the compression start angle of the second rotary compression member, the excluded volume ratio of the first and second rotary compression members is set. 70-